{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T01:43:14Z","timestamp":1792374194982,"version":"4.4.0"},"reference-count":22,"publisher":"Oxford University Press (OUP)","issue":"11","license":[{"start":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T00:00:00Z","timestamp":1758585600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/501100011925","name":"ESHRE","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100011925","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,11,1]]},"abstract":"Abstract<\/jats:title>\n \n STUDY QUESTION<\/jats:title>\n What are the data and trends of ART and IUI cycle numbers and their outcomes, and of fertility preservation (FP) interventions, reported in 2020 as compared to previous years?<\/jats:p>\n <\/jats:sec>\n \n SUMMARY ANSWER<\/jats:title>\n This 24th ESHRE report highlights the number of ART treatment cycles and children born over the years, showing a decline in the total number of treatment cycles, when comparing 2020 with 2019, alongside a decline in twin deliveries owing to a decrease in transfers of multiple embryos; however, fresh IVF or ICSI cycles and frozen embryo transfers (FET) showed similar pregnancy rates, and the reported IUI cycle numbers decreased while maintaining stable outcomes.<\/jats:p>\n <\/jats:sec>\n \n WHAT IS KNOWN ALREADY<\/jats:title>\n ART aggregated data generated by national registries, clinics, or professional societies have been gathered and analyzed by the European IVF Monitoring (EIM) consortium since 1997 and reported in a total of 23 manuscripts published in Human Reproduction and Human Reproduction Open.<\/jats:p>\n <\/jats:sec>\n \n STUDY DESIGN, SIZE, DURATION<\/jats:title>\n Data on medically assisted reproduction (MAR) from European countries are collected by EIM for ESHRE each year. The data on treatment cycles performed between January 1 and December 31, 2020, were provided by either national registries or registries based on initiatives of medical associations and scientific organizations or committed persons in the 44 countries that are members of the EIM Consortium.<\/jats:p>\n <\/jats:sec>\n \n PARTICIPANTS\/MATERIALS, SETTING, METHODS<\/jats:title>\n Overall, 1440 clinics offering ART services in 41 countries reported 923\u00a0318 treatment cycles (\u221214%; in 2019: 1\u00a0077\u00a0813), including 135 231 with IVF, 356\u00a0408 with ICSI, 305\u00a0373 with FET, 57\u00a0051 with preimplantation genetic testing (PGT), 64\u00a0007 with oocyte donation, 353 with IVM of oocytes, and 4895 cycles using frozen oocytes. A total of 1288 institutions reported data on IUI cycles using either husband\/partner\u2019s semen (IUI-H; n\u2009=\u2009112\u00a0663) or donor semen (IUI-D; n\u2009=\u200938\u00a0839) in 30 and 21 countries, respectively. Sixteen countries reported 29\u00a0566 interventions in pre-and post-pubertal patients for FP, including oocyte, ovarian tissue, semen, and testicular tissue banking.<\/jats:p>\n <\/jats:sec>\n \n MAIN RESULTS AND THE ROLE OF CHANCE<\/jats:title>\n In 24 countries (21 in 2019) in which all ART clinics reported to the registry, 356\u00a0427 treatment cycles were registered for a total population of approximately 268 million inhabitants in these countries, allowing the best estimate of a mean of 1330 cycles performed per million inhabitants (range: 142\u20133230). Among the reporting countries, for IVF, the clinical pregnancy rates (PR) per aspiration were similar to that in 2019 (22.1% versus 21.8% in 2019). For ICSI, the corresponding PRs showed similar trends (20.0% in 2020 versus 20.2% in 2019). When freeze-all cycles were excluded from the calculations, the clinical PRs per aspiration were 26.4% (28.5% in 2019) and 25.6% (26.2% in 2019) for IVF and ICSI, respectively. After oocyte donation, the PR per embryo transfer was 51.3% (50.5% in 2019) with freshly donated oocytes and 45.7% (44.8% in 2019) with thawed oocytes. After FET, the PR per thawing was 34.9% (versus 35.1% in 2019). In fresh cycles of both IVF and ICSI, the trend towards the transfer of fewer embryos continued with the transfer of 1, 2, 3, and \u22654 embryos in 57.2%, 37.8%, 4.8%, and 0.2%, of all treatments, respectively (corresponding to 55.4%, 39.9%, 2.6%, and 0.2% in 2019). This resulted in a reduced proportion of twin delivery rates (DRs) of 10.9% (11.9% in 2019) and a similar triplet DR of 0.2%. In FET cycles in 2020, the twin and triplet DRs were 7.9% and 0.1%, respectively (versus 8.9% and 0.1% in 2019). While the number of IUI cycles in 2020 decreased from 2019, the DRs remained stable at 8.8% after IUI-H (8.7% in 2019) and at 12.5% after IUI-D (12.1% in 2019). Twin and triplet DRs after IUI-H were 7.9% and 0.4% (in 2019: 8.7% and 0.4%) and 5.7% % and 0.1% after IUI-D (in 2019: 6.2% and 0.2%), respectively. Data on FP were provided by 16 countries (18 in 2019), reporting a total of 29\u00a0566 interventions (24\u00a0139 in 2019). Cryopreservation of ejaculated sperm (n\u2009=\u200921\u00a0864 versus n\u2009=\u200911\u00a0592 in 2019) and cryopreservation of oocytes (n\u2009=\u20096077 versus n\u2009=\u200910\u00a0784 in 2019) were the most frequently reported forms of FP.<\/jats:p>\n <\/jats:sec>\n \n LIMITATIONS, REASONS FOR CAUTION<\/jats:title>\n Caution with the interpretation of results should remain as data collection systems and completeness of reporting vary among European countries. Some countries were unable to deliver data about the number of initiated cycles and\/or deliveries.<\/jats:p>\n <\/jats:sec>\n \n WIDER IMPLICATIONS OF THE FINDINGS<\/jats:title>\n The 24th ESHRE data collection on ART and IUI interventions shows a decrease of reported treatment cycles. A decline was observed when comparing 2020 with 2019, regarding the numbers of MAR treatments and births derived from these treatments in Europe. This break in the trend from prior years could be due to the effects of the COVID pandemic and\/or due to the fact that some countries were not able to report. Although it is the largest data collection on MAR in Europe, further efforts to optimize both the collection and the reporting of data, from the perspective of improving surveillance and vigilance in the field of reproductive medicine, are awaited.<\/jats:p>\n <\/jats:sec>\n \n STUDY FUNDING\/COMPETING INTEREST(S)<\/jats:title>\n The study has received no external funding and all costs are covered by ESHRE. There are no competing interests.<\/jats:p>\n <\/jats:sec>","DOI":"10.1093\/humrep\/deaf179","type":"journal-article","created":{"date-parts":[[2025,8,24]],"date-time":"2025-08-24T11:30:47Z","timestamp":1756035047000},"page":"2038-2055","source":"Crossref","is-referenced-by-count":26,"title":["ART in Europe, 2020: results generated from European registries by ESHRE"],"prefix":"10.1093","volume":"40","author":[{"name":"The European IVF Monitoring Consortium (EIM) for the European Society of Human Reproduction and Embryology (ESHRE)","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Orion","family":"Gliozheni","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eduard","family":"Hambartsoumian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heinz","family":"Strohmer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elena","family":"Petrovskaya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diane","family":"De Neubourg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kris","family":"Bogaerts","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Devleta","family":"Balic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irena","family":"Antonova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evelina","family":"Cvetkova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dejan","family":"Ljiljak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karel","family":"Rezabek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Kirk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deniss","family":"S\u00f5ritsa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mika","family":"Gissler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sari","family":"Pelkonen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Imene","family":"Mansouri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacques","family":"de Mouzon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lika","family":"Chkonia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas Tandler\u2014","family":"Schneider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Markus","family":"Kimmel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikos","family":"Vrachnis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janos","family":"Urbancsek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G","family":"Kosztolanyi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hilmar","family":"Bjorgvinsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary","family":"Wingfield","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joyce","family":"Leyden","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia","family":"Scaravelli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"de Luca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vyacheslav","family":"Lokshin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sholpan","family":"Karibayeva","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valerija","family":"Agloniete","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raminta","family":"Bausyte","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ieva","family":"Masliukaite","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caroline","family":"Schilling","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean","family":"Calleja-Agius","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veaceslav","family":"Moshin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatjana Motrenko","family":"Simic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dragana","family":"Vukicevic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jesper M J","family":"Smeenk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zoranco","family":"Petanovski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liv Bente","family":"Romundstad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Janicka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Calhaz-Jorge","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joana Maria Mesquita","family":"Guimaraes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia Duarte e","family":"Silva","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladislav","family":"Korsak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Snezana","family":"Vidakovic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ladislav","family":"Marsik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Borut","family":"Kovacic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene Cuevas","family":"Saiz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando Prados","family":"Mond\u00e9jar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina","family":"Bergh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandra","family":"Toitot","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mischa","family":"Schneider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mete","family":"Isikoglu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Basak","family":"Balaban","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mykola","family":"Gryshchenko","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3053-0358","authenticated-orcid":false,"given":"J","family":"Smeenk","sequence":"additional","affiliation":[{"name":"Elisabeth Twee Steden Ziekenhuis , Tilburg,","place":["The Netherlands"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C","family":"Wyns","sequence":"additional","affiliation":[{"name":"Cliniques universitaires Saint-Luc, Universit\u00e9 Catholique de Louvain , Brussels,","place":["Belgium"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0889-6310","authenticated-orcid":false,"given":"Ch","family":"De Geyter","sequence":"additional","affiliation":[{"name":"Reproductive Medicine and Gynecological Endocrinology (RME), University Hospital, University of Basel , Basel,","place":["Switzerland"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M S","family":"Kupka","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University Hospital, LMU Munich , Munich,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6049-7731","authenticated-orcid":false,"given":"C","family":"Bergh","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Inst of Clinical Sciences, G\u00f6teborg University , G\u00f6teborg,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I","family":"Cuevas Saiz","sequence":"additional","affiliation":[{"name":"Hospital General Universitario de Valencia , Valencia,","place":["Spain"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9159-5083","authenticated-orcid":false,"given":"D","family":"De Neubourg","sequence":"additional","affiliation":[{"name":"University of Antwerp\u2014Antwerp University Hospital, Center for Reproductive Medicine , Edegem,","place":["Belgium"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1538-9894","authenticated-orcid":false,"given":"K","family":"Rezabek","sequence":"additional","affiliation":[{"name":"Department of Gynaecology, Obstetrics and Neonatology First Faculty of Medicine, Charles University and General University Hospital , Prague,","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Tandler-Schneider","sequence":"additional","affiliation":[{"name":"Fertility Center Berlin , Berlin,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I","family":"Rugescu","sequence":"additional","affiliation":[{"name":"National Transplant Agency ,","place":["Romania"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9342-2143","authenticated-orcid":false,"given":"V","family":"Goossens","sequence":"additional","affiliation":[{"name":"ESHRE Central Office , Grimbergen,","place":["Belgium"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2025,9,23]]},"reference":[{"key":"2025110412234569200_deaf179-B1","doi-asserted-by":"crossref","first-page":"1782","DOI":"10.1093\/humrep\/deq080","article-title":"Maternal death related to IVF in the Netherlands 1984-2008","volume":"25","author":"Braat","year":"2010","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B2","doi-asserted-by":"crossref","first-page":"hoz044","DOI":"10.1093\/hropen\/hoz044","article-title":"Survey on ART and IUI: legislation, regulation, funding and registries in European countries: The European IVF-monitoring Consortium (EIM) for the European Society of Human Reproduction and Embryology (ESHRE)","volume":"2020","author":"Calhaz-Jorge","year":"2020","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B3","doi-asserted-by":"crossref","first-page":"2921","DOI":"10.1093\/humrep\/deab198","article-title":"International Committee for Monitoring Assisted Reproductive Technologies world report: assisted reproductive technology, 2014","volume":"36","author":"Chambers","year":"2021","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B4","doi-asserted-by":"publisher","DOI":"10.1093\/humrep\/dead093.005","article-title":"The ToF-study\u2014comparing the cumulative live birth rate of blastocyst-stage versus cleavage-stage embryo transfers in good prognosis IVF patients: a multicenter randomized controlled trial","volume":"38","author":"Cornelisse","year":"2023","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B5","doi-asserted-by":"crossref","first-page":"hoad011","DOI":"10.1093\/hropen\/hoad011","article-title":"EuMAR: a roadmap towards a prospective, cycle-by-cycle registry of medically assisted reproduction in Europe","volume":"2023","author":"De Geyter","year":"2023","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B6","doi-asserted-by":"crossref","first-page":"hoaa038","DOI":"10.1093\/hropen\/hoaa038","article-title":"ART in Europe, 2015: results generated from European registries by ESHRE","volume":"2020","author":"De Geyter","year":"2020","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B7","doi-asserted-by":"crossref","first-page":"2832","DOI":"10.1093\/humrep\/deaa250","article-title":"20 years of the European IVF-monitoring Consortium registry: what have we learned? A comparison with registries from two other regions","volume":"35","author":"De Geyter","year":"2020","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B8","doi-asserted-by":"crossref","first-page":"2160","DOI":"10.1093\/humrep\/dew199","article-title":"Data collection systems in ART must follow the pace of change in clinical practice","volume":"31","author":"De Geyter","year":"2016","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B9","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1093\/humrep\/dev270","article-title":"How do cumulative live birth rates and cumulative multiple live birth rates over complete courses of assisted reproductive technology treatment per woman compare among registries?","volume":"31","author":"De Neubourg","year":"2016","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B10","first-page":"CD002118","article-title":"Cleavage-stage versus blastocyst-stage embryo transfer in assisted reproductive technology","volume":"5","author":"Glujovsky","year":"2022","journal-title":"Cochrane Database Syst Rev"},{"key":"2025110412234569200_deaf179-B11","doi-asserted-by":"crossref","DOI":"10.1017\/9781108653763","volume-title":"Assisted Reproductive Technology Surveillance","author":"Kissin","year":"2019"},{"key":"2025110412234569200_deaf179-B12","doi-asserted-by":"crossref","first-page":"2393","DOI":"10.1007\/s10815-020-01904-5","article-title":"Cryopreservation and IVF in the time of Covid-19: what is the best good tissue practice (GTP)?","volume":"37","author":"Pomeroy","year":"2020","journal-title":"J Assist Reprod Genet"},{"key":"2025110412234569200_deaf179-B13","doi-asserted-by":"crossref","first-page":"1246","DOI":"10.1016\/j.fertnstert.2018.09.011","article-title":"Blastocyst culture and transfer in clinically assisted reproduction: a committee opinion","volume":"110","author":"Practice Committee of the American Society for Reproductive Medicine; Practice Committee of the Society for Assisted Reproductive Technology","year":"2018","journal-title":"Fertil Steril"},{"key":"2025110412234569200_deaf179-B14","doi-asserted-by":"crossref","first-page":"52","DOI":"10.23736\/S0031-0808.18.03492-4","article-title":"Freeze-all strategy in IVF\/ICSI cycles: an update on clinical utility","volume":"61","author":"Roque","year":"2019","journal-title":"Panminerva Med"},{"key":"2025110412234569200_deaf179-B1400","doi-asserted-by":"crossref","first-page":"2321","DOI":"10.1093\/humrep\/dead197","article-title":"ART in Europe, 2019: results generated from European registries by ESHRE\u2020","volume":"38","year":"2023","journal-title":"Hum Reprod"},{"key":"2025110412234569200_deaf179-B15","doi-asserted-by":"crossref","first-page":"hoad010","DOI":"10.1093\/hropen\/hoad010","article-title":"ESHRE PGT Consortium data collection XXI: PGT analyses in 2018","volume":"2023","author":"Spinella","year":"2023","journal-title":"Hum Repr Open"},{"key":"2025110412234569200_deaf179-B16","doi-asserted-by":"crossref","first-page":"hoaa035","DOI":"10.1093\/hropen\/hoaa035","article-title":"A picture of medically assisted reproduction activities during the COVID-19 pandemic in Europe","volume":"2020","author":"Vermeulen","year":"2020","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B17","doi-asserted-by":"crossref","first-page":"hoaa032","DOI":"10.1093\/hropen\/hoaa032","article-title":"European IVF-monitoring Consortium (EIM) for the European Society of Human Reproduction and Embryology (ESHRE). ART in Europe, 2016: results generated from European registries by ESHRE","volume":"2020","author":"Wyns","year":"2020","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B18","doi-asserted-by":"crossref","first-page":"hoab026","DOI":"10.1093\/hropen\/hoab026","article-title":"ART in Europe, 2017: results generated from European registries by ESHRE","volume":"2021","author":"Wyns","year":"2021","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B19","doi-asserted-by":"crossref","first-page":"hoac022","DOI":"10.1093\/hropen\/hoac022","article-title":"ART in Europe, 2018: results generated from European registries by ESHRE","volume":"2022","author":"Wyns","year":"2022","journal-title":"Hum Reprod Open"},{"key":"2025110412234569200_deaf179-B20","first-page":"CD011184","article-title":"Fresh versus frozen embryo transfers in assisted reproduction","volume":"2","author":"Zaat","year":"2021","journal-title":"Cochrane Database Syst Rev"},{"key":"2025110412234569200_deaf179-B21","doi-asserted-by":"crossref","first-page":"1786","DOI":"10.1093\/humrep\/dex234","article-title":"The International Glossary on Infertility and Fertility Care, 2017","volume":"32","author":"Zegers-Hochschild","year":"2017","journal-title":"Hum Reprod"}],"container-title":["Human Reproduction"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/humrep\/article-pdf\/40\/11\/2038\/64351549\/deaf179.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/humrep\/article-pdf\/40\/11\/2038\/64351549\/deaf179.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,4]],"date-time":"2025-11-04T17:23:55Z","timestamp":1762277035000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/humrep\/article\/40\/11\/2038\/8262033"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,23]]},"references-count":22,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2025,9,23]]},"published-print":{"date-parts":[[2025,11,1]]}},"URL":"https:\/\/doi.org\/10.1093\/humrep\/deaf179","relation":{},"ISSN":["0268-1161","1460-2350"],"issn-type":[{"value":"0268-1161","type":"print"},{"value":"1460-2350","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2025,11]]},"published":{"date-parts":[[2025,9,23]]}}}