{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T22:29:11Z","timestamp":1767652151670,"version":"build-2065373602"},"reference-count":59,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,24]],"date-time":"2022-12-24T00:00:00Z","timestamp":1671840000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"],"award-info":[{"award-number":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"]}]},{"name":"Shandong Provincial Key Research and Development Program","award":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"],"award-info":[{"award-number":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"]}]},{"name":"Shandong Provincial Medical and Health Science and Technology Development Program","award":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"],"award-info":[{"award-number":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"]}]},{"name":"Shandong Provincial Natural Science Foundation","award":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"],"award-info":[{"award-number":["2018YFC1004800","2020ZLYS02","2019WS171","ZR2020MH072"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>During controlled ovarian hyperstimulation (COH), cystic anechoic zones in the uterine cavity are occasionally visible. This retrospective matched cohort study collected information on patients who underwent in vitro fertilization\/intracytoplasmic injection (IVF\/ICSI) from January 2014 to December 2020 at our center. The propensity score algorithm matched 179 cases that had uterine cystic anechoic zones, with 358 which did not have uterine cystic anechoic zones cases. After matching, the live birth rate (38.0% vs. 48.6%, p = 0.025) of patients with uterine cystic anechoic zones was lower than that in the no uterine cystic anechoic zone group, while for clinical pregnancy miscarriage rate (22.2% vs. 12.4%, p = 0.031), the rate was higher. The results showed no correlation in the association between live birth rate (r = \u22120.027, p = 0.718), clinical pregnancy rate (r = \u22120.037, p = 0.620) or biochemical pregnancy rate (r = \u22120.015, p = 0.840) and the diameters of the cystic anechoic zones in the uterine cavity. There was a significant difference in the type of endometrium between the two groups (p &lt; 0.001). The result of this study can provide guidance to patients on whether to undergo fresh embryo transfer in the current cycle.<\/jats:p>","DOI":"10.3390\/jcm12010134","type":"journal-article","created":{"date-parts":[[2022,12,27]],"date-time":"2022-12-27T02:53:11Z","timestamp":1672109591000},"page":"134","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["The Cystic Anechoic Zone of Uterine Cavity Newly Observed during Controlled Ovarian Hyperstimulation Affects Pregnancy Outcomes of Fresh Embryo Transfer"],"prefix":"10.3390","volume":"12","author":[{"given":"Yizheng","family":"Tian","sequence":"first","affiliation":[{"name":"Center for Reproductive Medicine, Shandong University, Jinan 250100, China"},{"name":"Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan 250100, China"},{"name":"Shandong Key Laboratory of Reproductive Medicine, Jinan 250012, China"},{"name":"Medical Integration and Practice Center, Shandong University, Jinan 250100, China"},{"name":"Gynecology Department, Reproductive Hospital Affiliated to Shandong University, Jinan 250001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shengrui","family":"Zhao","sequence":"additional","affiliation":[{"name":"Center for Reproductive Medicine, Shandong University, Jinan 250100, China"},{"name":"Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan 250100, China"},{"name":"Shandong Key Laboratory of Reproductive Medicine, Jinan 250012, China"},{"name":"Medical Integration and Practice Center, Shandong University, Jinan 250100, China"},{"name":"Gynecology Department, Reproductive Hospital Affiliated to Shandong University, Jinan 250001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianan","family":"Lv","sequence":"additional","affiliation":[{"name":"Center for Reproductive Medicine, Shandong University, Jinan 250100, China"},{"name":"Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan 250100, China"},{"name":"Shandong Key Laboratory of Reproductive Medicine, Jinan 250012, China"},{"name":"Medical Integration and Practice Center, Shandong University, Jinan 250100, China"},{"name":"Gynecology Department, Reproductive Hospital Affiliated to Shandong University, Jinan 250001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4978-5120","authenticated-orcid":false,"given":"Hong","family":"Lv","sequence":"additional","affiliation":[{"name":"Center for Reproductive Medicine, Shandong University, Jinan 250100, China"},{"name":"Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan 250100, China"},{"name":"Shandong Key Laboratory of Reproductive Medicine, Jinan 250012, China"},{"name":"Medical Integration and Practice Center, Shandong University, Jinan 250100, China"},{"name":"Gynecology Department, Reproductive Hospital Affiliated to Shandong University, Jinan 250001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Yan","sequence":"additional","affiliation":[{"name":"Center for Reproductive Medicine, Shandong University, Jinan 250100, China"},{"name":"Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan 250100, China"},{"name":"Shandong Key Laboratory of Reproductive Medicine, Jinan 250012, China"},{"name":"Medical Integration and Practice Center, Shandong University, Jinan 250100, China"},{"name":"Gynecology Department, Reproductive Hospital Affiliated to Shandong University, Jinan 250001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"416","DOI":"10.1111\/j.1447-0756.2010.01372.x","article-title":"Embryo selection or uterine environment: Which plays the greater role in blastocyst transfer cycles?","volume":"37","author":"Kovacs","year":"2011","journal-title":"J. Obstet. Gynaecol. Res."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2792","DOI":"10.1093\/humrep\/deq213","article-title":"Embryo and uterine influences on IVF outcomes: An analysis of a UK multi-centre cohort","volume":"25","author":"Roberts","year":"2010","journal-title":"Hum. Reprod."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1344","DOI":"10.1016\/j.fertnstert.2006.03.052","article-title":"Ultrasound characteristics and histological dating of the endometrium in a natural cycle in infertile women compared with fertile controls","volume":"86","author":"Lindhard","year":"2006","journal-title":"Fertil. Steril."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"410","DOI":"10.1023\/A:1020513423948","article-title":"The effect of endometrial polyps on outcomes of in vitro fertilization (IVF) cycles","volume":"16","author":"Lass","year":"1999","journal-title":"J. Assist. Reprod. Genet."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/S1472-6483(10)60861-9","article-title":"Endometrial polyps smaller than 1","volume":"12","author":"Isikoglu","year":"2006","journal-title":"5 cm do not affect ICSI outcome. Reprod. Biomed. Online"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1097\/GRF.0b013e318196153c","article-title":"Imaging of endometrial pathology","volume":"52","author":"Lane","year":"2009","journal-title":"Clin. Obstet. Gynecol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1016\/j.ajog.2007.12.039","article-title":"Fibroids and reproductive outcomes: A systematic literature review from conception to delivery","volume":"198","author":"Klatsky","year":"2008","journal-title":"Am. J. Obstet. Gynecol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1080\/09513590600604673","article-title":"Effects of the position of fibroids on fertility","volume":"22","author":"Casini","year":"2006","journal-title":"Gynecol. Endocrinol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1093\/humupd\/dmm013","article-title":"Fibroids and female reproduction: A critical analysis of the evidence","volume":"13","author":"Somigliana","year":"2007","journal-title":"Hum. Reprod. Update"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1215","DOI":"10.1016\/j.fertnstert.2008.01.051","article-title":"Fibroids and infertility: An updated systematic review of the evidence","volume":"91","author":"Pritts","year":"2009","journal-title":"Fertil. Steril."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"102","DOI":"10.1002\/uog.6259","article-title":"Prevalence of endometrial polyps and abnormal uterine bleeding in a Danish population aged 20\u201374 years","volume":"33","author":"Dreisler","year":"2009","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1007\/s13224-016-0929-4","article-title":"Endometrial Polyps and Subfertility","volume":"67","author":"Saridogan","year":"2017","journal-title":"J. Obstet. Gynaecol. India"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"629","DOI":"10.1016\/j.fertnstert.2019.02.008","article-title":"Uterine polyps, adenomyosis, leiomyomas, and endometrial receptivity","volume":"111","author":"Munro","year":"2019","journal-title":"Fertil. Steril."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1002\/uog.7487","article-title":"Terms, definitions and measurements to describe the sonographic features of the endometrium and intrauterine lesions: A consensus opinion from the International Endometrial Tumor Analysis (IETA) group","volume":"35","author":"Leone","year":"2010","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_15","unstructured":"Mary, E., Lesli, M., and Vickie, A. (2019). Callen\u2019s Ultrasonography in Obstetrics and Gynecology, People Medical Publishing House. [6th ed.]."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1056\/NEJMoa1513873","article-title":"Fresh versus Frozen Embryos for Infertility in the Polycystic Ovary Syndrome","volume":"375","author":"Chen","year":"2016","journal-title":"N. Engl. J. Med."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1016\/j.rbmo.2015.06.026","article-title":"Quality control and standardization of embryo morphology scoring and viability markers","volume":"31","author":"Lundin","year":"2015","journal-title":"Reprod. Biomed. Online"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1007\/BF01135678","article-title":"Prediction of implantation by the sonographic appearance of the endometrium during controlled ovarian stimulation for in vitro fertilization (IVF)","volume":"7","author":"Gonen","year":"1990","journal-title":"J. Vitr. Fertil. Embryo Transf."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1658","DOI":"10.1016\/S0140-6736(21)00682-6","article-title":"Miscarriage matters: The epidemiological, physical, psychological, and economic costs of early pregnancy loss","volume":"397","author":"Quenby","year":"2021","journal-title":"Lancet"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"286","DOI":"10.3348\/kjr.2015.16.2.286","article-title":"Propensity score matching: A conceptual review for radiology researchers","volume":"16","author":"Baek","year":"2015","journal-title":"Korean J. Radiol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1080\/00273171.2011.568786","article-title":"An Introduction to Propensity Score Methods for Reducing the Effects of Confounding in Observational Studies","volume":"46","author":"Austin","year":"2011","journal-title":"Multivar. Behav. Res."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"278","DOI":"10.1016\/j.ijgo.2015.07.037","article-title":"Impact of endometrial cavity fluid on assisted reproductive technology outcomes","volume":"132","author":"Liu","year":"2016","journal-title":"Int. J. Gynaecol. Obstet."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1981","DOI":"10.1002\/jum.15880","article-title":"Endometrial Abnormalities: Correlation Between Different Diagnostic Modalities","volume":"41","author":"Detti","year":"2022","journal-title":"J. Ultrasound Med."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1002\/jcu.1870180306","article-title":"Endometrial hyperplasia: Value of endometrial thickness in ultrasonographic diagnosis and clinical significance","volume":"18","author":"Malpani","year":"1990","journal-title":"J. Clin. Ultrasound"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1016\/j.fertnstert.2018.04.012","article-title":"Endometritis: New time, new concepts","volume":"110","author":"Kitaya","year":"2018","journal-title":"Fertil. Steril."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1002\/uog.14927","article-title":"Ultrasound and intrauterine adhesions: A novel structured approach to diagnosis and management","volume":"46","author":"Amin","year":"2015","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1016\/j.fertnstert.2018.01.035","article-title":"Introduction: Uterine adenomyosis, another enigmatic disease of our time","volume":"109","author":"Donnez","year":"2018","journal-title":"Fertil. Steril."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"374","DOI":"10.1093\/humupd\/dms006","article-title":"Adenomyosis and subfertility: A systematic review of prevalence, diagnosis, treatment and fertility outcomes","volume":"18","author":"Maheshwari","year":"2012","journal-title":"Hum. Reprod. Update"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1055\/s-2007-991044","article-title":"Uterine receptivity: Alterations associated with benign gynecological disease","volume":"25","author":"Donaghay","year":"2007","journal-title":"Semin. Reprod. Med."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"611","DOI":"10.1016\/j.fertnstert.2019.02.009","article-title":"What exactly is endometrial receptivity?","volume":"111","author":"Lessey","year":"2019","journal-title":"Fertil. Steril."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1111\/aji.12472","article-title":"Secrets of Endometrial Receptivity: Some Are Hidden in Uterine Secretome","volume":"75","author":"Bhusane","year":"2016","journal-title":"Am. J. Reprod. Immunol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1530\/rep.0.1240289","article-title":"Evidence that absence of endometrial gland secretions in uterine gland knockout ewes compromises conceptus survival and elongation","volume":"124","author":"Gray","year":"2002","journal-title":"Reproduction"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/j.mce.2014.09.007","article-title":"Environmental factors affecting pregnancy: Endocrine disrupters, nutrients and metabolic pathways","volume":"398","author":"Bazer","year":"2014","journal-title":"Mol. Cell. Endocrinol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1387\/ijdb.130344ts","article-title":"Uterine glands: Biological roles in conceptus implantation, uterine receptivity and decidualization","volume":"58","author":"Filant","year":"2014","journal-title":"Int. J. Dev. Biol."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1055\/s-0034-1376354","article-title":"Biological roles of uterine glands in pregnancy","volume":"32","author":"Spencer","year":"2014","journal-title":"Semin. Reprod. Med."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.semcdb.2022.03.039","article-title":"Human placental development and function","volume":"131","year":"2022","journal-title":"Semin. Cell Dev. Biol."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"792","DOI":"10.1016\/j.fertnstert.2021.12.025","article-title":"Optimal endometrial thickness in fresh and frozen-thaw in vitro fertilization cycles: An analysis of live birth rates from 96,000 autologous embryo transfers","volume":"117","author":"Mahutte","year":"2022","journal-title":"Fertil. Steril."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1016\/j.rbmo.2021.02.003","article-title":"Impact of chronic endometritis in infertility: A SWOT analysis","volume":"42","author":"Fabregues","year":"2021","journal-title":"Reprod. Biomed. Online"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1443","DOI":"10.1016\/j.fertnstert.2021.03.023","article-title":"Chronic endometritis: Simple can be harder than complex?","volume":"115","author":"Kitaya","year":"2021","journal-title":"Fertil. Steril."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1026","DOI":"10.1016\/j.fertnstert.2013.12.031","article-title":"Chronic endometritis in women with recurrent early pregnancy loss and\/or fetal demise","volume":"101","author":"McQueen","year":"2014","journal-title":"Fertil. Steril."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"392","DOI":"10.1055\/s-0034-1376358","article-title":"Endometrial receptivity and intrauterine adhesive disease","volume":"32","author":"Young","year":"2014","journal-title":"Semin. Reprod. Med."},{"key":"ref_42","first-page":"290","article-title":"Endovascular management of aortoenteric fistulas with aortic cuff extenders: Report of two cases","volume":"30","author":"Kakkos","year":"2011","journal-title":"Int. Angiol."},{"key":"ref_43","first-page":"505","article-title":"Assisted reproductive technologies and uterine factors influencing their success","volume":"65","author":"Savasi","year":"2013","journal-title":"Minerva Ginecol."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"1367","DOI":"10.1016\/j.jmig.2020.10.029","article-title":"Reproductive Outcomes of In Vitro Fertilization-Intracytoplasmic Sperm Injection after Transcervical Resection of Adhesions: A Retrospective Cohort Study","volume":"28","author":"Wang","year":"2021","journal-title":"J. Minim. Invasive Gynecol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1181","DOI":"10.1016\/j.fertnstert.2021.05.099","article-title":"Live births after Asherman syndrome treatment","volume":"116","author":"Hanstede","year":"2021","journal-title":"Fertil. Steril."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1847","DOI":"10.1093\/humrep\/dey237","article-title":"Live birth rate and obstetric complications following the hysteroscopic management of intrauterine adhesions including Asherman syndrome","volume":"33","author":"Deans","year":"2018","journal-title":"Hum. Reprod."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"1141","DOI":"10.1016\/S0015-0282(97)00375-0","article-title":"Hysteroscopic treatment of intrauterine adhesions is safe and effective in the restoration of normal menstruation and fertility","volume":"68","author":"Atay","year":"1997","journal-title":"Fertil. Steril."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"9","DOI":"10.21037\/atm-20-3623","article-title":"Endometrial cavity fluid is associated with deleterious pregnancy outcomes in patients undergoing in vitro fertilization\/intracytoplasmic sperm injection: A retrospective cohort study","volume":"9","author":"Zhang","year":"2021","journal-title":"Ann. Transl. Med."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1097\/GCO.0b013e3283468b94","article-title":"How to deal with fluid in the endometrial cavity during assisted reproductive techniques","volume":"23","author":"He","year":"2011","journal-title":"Curr. Opin. Obstet. Gynecol."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"46","DOI":"10.1186\/1477-7827-8-46","article-title":"The associated factors to endometrial cavity fluid and the relevant impact on the IVF-ET outcome","volume":"8","author":"He","year":"2010","journal-title":"Reprod. Biol. Endocrinol."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1016\/j.rbmo.2018.12.020","article-title":"Hydrosalpinx and pregnancy loss: A systematic review and meta-analysis","volume":"38","author":"Harb","year":"2019","journal-title":"Reprod. Biomed. Online"},{"key":"ref_52","first-page":"290","article-title":"Endometrial fluid accumulation during controlled ovarian stimulation for ICSI treatment","volume":"29","author":"Nikolettos","year":"2002","journal-title":"A report of three cases. Clin. Exp. Obstet. Gynecol."},{"key":"ref_53","first-page":"101","article-title":"Value of Endometrial Echopattern at HCG Administration Day in Predicting IVF Outcome","volume":"20","author":"Ahmadi","year":"2017","journal-title":"Arch. Iran. Med."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1186\/1477-7827-10-100","article-title":"The effect of endometrial thickness and pattern measured by ultrasonography on pregnancy outcomes during IVF-ET cycles","volume":"10","author":"Zhao","year":"2012","journal-title":"Reprod. Biol. Endocrinol."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1186\/1477-7827-8-30","article-title":"Combined analysis of endometrial thickness and pattern in predicting outcome of in vitro fertilization and embryo transfer: A retrospective cohort study","volume":"8","author":"Chen","year":"2010","journal-title":"Reprod. Biol. Endocrinol."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"765","DOI":"10.1002\/uog.2628","article-title":"Evaluation of endometrial receptivity during in-vitro fertilization using three-dimensional power Doppler ultrasound","volume":"26","author":"Sladkevicius","year":"2005","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"1293","DOI":"10.1093\/oxfordjournals.humrep.a138244","article-title":"Adverse effect of a homogeneous hyperechogenic endometrial sonographic pattern, despite adequate endometrial thickness on pregnancy rates following in-vitro fertilization","volume":"8","author":"Check","year":"1993","journal-title":"Hum. Reprod."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1007\/s10815-006-9035-3","article-title":"Effect of endometrial cavity fluid on clinical pregnancy rate in tubal embryo transfer (TET)","volume":"23","author":"Lee","year":"2006","journal-title":"J. Assist. Reprod. Genet."},{"key":"ref_59","first-page":"299","article-title":"Endometrial fluid collection in women with PCOS undergoing ovarian stimulation for IVF","volume":"44","author":"Sharara","year":"1999","journal-title":"A report of four cases. J. Reprod. Med."}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/12\/1\/134\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:50:03Z","timestamp":1760147403000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/12\/1\/134"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,24]]},"references-count":59,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2023,1]]}},"alternative-id":["jcm12010134"],"URL":"https:\/\/doi.org\/10.3390\/jcm12010134","relation":{},"ISSN":["2077-0383"],"issn-type":[{"type":"electronic","value":"2077-0383"}],"subject":[],"published":{"date-parts":[[2022,12,24]]}}}