{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T08:10:21Z","timestamp":1791360621312,"version":"4.3.1"},"reference-count":51,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/501100002402","name":"Sun Yat-sen University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002402","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2015A030313192"],"award-info":[{"award-number":["2015A030313192"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2021A1515010290"],"award-info":[{"award-number":["2021A1515010290"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Journal of Reproductive Immunology"],"published-print":{"date-parts":[[2026,6]]},"DOI":"10.1016\/j.jri.2026.104885","type":"journal-article","created":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T16:07:03Z","timestamp":1775059623000},"page":"104885","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"special_numbering":"C","title":["Abnormal expression of ILT2, NKG2D and NKp46 receptors on natural killer cells in women with unexplained recurrent implantation failure"],"prefix":"10.1016","volume":"175","author":[{"given":"Yingying","family":"Zhang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingya","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wanle","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Luo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niwei","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Limei","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Ouyang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Canquan","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiong","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.jri.2026.104885_bib1","doi-asserted-by":"crossref","first-page":"236","DOI":"10.4274\/tjod.galenos.2020.90359","article-title":"Endometrial cd56+ natural killer cells in women with recurrent implantation failure: an immunohistochemical study","volume":"17","author":"Babayeva","year":"2020","journal-title":"Turk. J. Obstet. Gynecol."},{"key":"10.1016\/j.jri.2026.104885_bib2","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1387\/ijdb.082763jb","article-title":"Immune cells in the placental bed","volume":"54","author":"Bulmer","year":"2010","journal-title":"Int. J. Dev. Biol."},{"key":"10.1016\/j.jri.2026.104885_bib3","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.rbmo.2019.10.014","article-title":"How common is real repeated implantation failure? An indirect estimate of the prevalence","volume":"40","author":"Busnelli","year":"2020","journal-title":"Reprod. Biomed. Online"},{"key":"10.1016\/j.jri.2026.104885_bib4","doi-asserted-by":"crossref","DOI":"10.3389\/fgene.2025.1661511","article-title":"Emerging roles of natural killer cell ligands-hla-e, hla-f, hla-g, mica, and micb-in in vitro fertilization outcomes","volume":"16","author":"Chaaithanya","year":"2025","journal-title":"Front. Genet."},{"key":"10.1016\/j.jri.2026.104885_bib5","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1038\/s41392-024-02005-w","article-title":"Comprehensive snapshots of natural killer cells functions, signaling, molecular mechanisms and clinical utilization","volume":"9","author":"Chen","year":"2024","journal-title":"Signal Transduct. Target. Ther."},{"key":"10.1016\/j.jri.2026.104885_bib6","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1016\/j.rbmo.2013.08.011","article-title":"Recurrent implantation failure: definition and management","volume":"28","author":"Coughlan","year":"2014","journal-title":"Reprod. Biomed. Online"},{"key":"10.1016\/j.jri.2026.104885_bib7","doi-asserted-by":"crossref","first-page":"2456","DOI":"10.1093\/humrep\/dez194","article-title":"Endometrial unk cell counts do not predict successful implantation in an ivf population","volume":"34","author":"Donoghue","year":"2019","journal-title":"Hum. Reprod."},{"key":"10.1016\/j.jri.2026.104885_bib8","article-title":"A blinded investigation: accentuated nk lymphocyte cd335 (nkp46) expression predicts pregnancy failures","volume":"13","author":"Dons'koi","year":"2023","journal-title":"Diagn. (Basel)"},{"key":"10.1016\/j.jri.2026.104885_bib9","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1016\/j.jri.2009.06.123","article-title":"Effector functions of human decidual nk cells in healthy early pregnancy are dependent on the specific engagement of natural cytotoxicity receptors","volume":"82","author":"El Costa","year":"2009","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib10","doi-asserted-by":"crossref","unstructured":"ESHRE Working Group on Recurrent Implantation Failure; Cimadomo D, de Los Santos MJ, Griesinger G, Lainas G, Le Clef N, McLernon DJ, Montjean D, Toth B, Vermeulen N, Macklon N. Eshre good practice recommendations on recurrent implantation failure. Hum. Reprod. Open 2023, hoad023.","DOI":"10.1093\/hropen\/hoad023"},{"key":"10.1016\/j.jri.2026.104885_bib11","doi-asserted-by":"crossref","first-page":"1541","DOI":"10.1111\/jog.13075","article-title":"Expression of retinoid-related orphan receptor (ror) \u03b3t on nk22 cells in the peripheral blood and uterine endometrium of women with unexplained recurrent pregnancy loss and unexplained infertility","volume":"42","author":"Fuchinoue","year":"2016","journal-title":"J. Obstet. Gynaecol. Res."},{"key":"10.1016\/j.jri.2026.104885_bib12","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1111\/j.1600-0897.2006.00431.x","article-title":"Expression of natural cytotoxicity receptors and a2v-atpase on peripheral blood nk cell subsets in women with recurrent spontaneous abortions and implantation failures","volume":"56","author":"Fukui","year":"2006","journal-title":"Am. J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib13","doi-asserted-by":"crossref","first-page":"371","DOI":"10.1111\/j.1600-0897.2009.00750.x","article-title":"Correlation between natural cytotoxicity receptors and intracellular cytokine expression of peripheral blood nk cells in women with recurrent pregnancy losses and implantation failures","volume":"62","author":"Fukui","year":"2009","journal-title":"Am. J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib14","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.jri.2011.04.006","article-title":"Uterine and circulating natural killer cells and their roles in women with recurrent pregnancy loss, implantation failure and preeclampsia","volume":"90","author":"Fukui","year":"2011","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib15","doi-asserted-by":"crossref","DOI":"10.1111\/aji.70131","article-title":"Outcomes of ultimpro testing implementation for patients with unexplained recurrent implantation failure: a single-center retrospective cohort study","volume":"94","author":"Genest","year":"2025","journal-title":"Am. J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib16","doi-asserted-by":"crossref","first-page":"E6566","DOI":"10.1073\/pnas.1701129114","article-title":"Embryo implantation evolved from an ancestral inflammatory attachment reaction","volume":"114","author":"Griffith","year":"2017","journal-title":"Proc. Natl. Acad. Sci."},{"key":"10.1016\/j.jri.2026.104885_bib17","doi-asserted-by":"crossref","first-page":"937","DOI":"10.3389\/fendo.2019.00937","article-title":"Peripheral cd56+ cd16+ nk cell populations in the early follicular phase are associated with successful clinical outcomes of intravenous immunoglobulin treatment in women with repeated implantation failure","volume":"10","author":"Ho","year":"2020","journal-title":"Front. Endocrinol."},{"key":"10.1016\/j.jri.2026.104885_bib18","doi-asserted-by":"crossref","DOI":"10.1016\/j.jri.2020.103269","article-title":"Granzyme b-expressing \u03b3\u03b4-t and nk cells as a predictor of clinical pregnancy failure in patients with unexplained repeated implantation failure","volume":"144","author":"Huang","year":"2021","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib19","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1038\/s41467-019-14123-z","article-title":"Distinctive phenotypes and functions of innate lymphoid cells in human decidua during early pregnancy","volume":"11","author":"Huhn","year":"2020","journal-title":"Nat. Commun."},{"key":"10.1016\/j.jri.2026.104885_bib20","doi-asserted-by":"crossref","DOI":"10.3389\/fimmu.2021.607669","article-title":"How do uterine natural killer and innate lymphoid cells contribute to successful pregnancy?","volume":"12","author":"Huhn","year":"2021","journal-title":"Front. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib21","first-page":"265","article-title":"Uterine natural killer cell biology and role in early pregnancy establishment and outcomes","volume":"2","author":"Kanter","year":"2021","journal-title":"F. S Rev."},{"key":"10.1016\/j.jri.2026.104885_bib22","doi-asserted-by":"crossref","first-page":"480","DOI":"10.1093\/humupd\/4.5.480","article-title":"Human uterine lymphocytes","volume":"4","author":"King","year":"1998","journal-title":"Hum. Reprod. Update"},{"key":"10.1016\/j.jri.2026.104885_bib23","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1016\/j.jri.2009.06.224","article-title":"Overexpression of nkp46 in cd3\u2212 cd56+ nk cells in couples with unexplained recurrent spontaneous abortions (ursa)","volume":"81","author":"Konsta","year":"2009","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib24","doi-asserted-by":"crossref","DOI":"10.3390\/ijms262010109","article-title":"Clustering of uterine natural killer cells around uterine glands in women with recurrent implantation failure and recurrent pregnancy loss: an immunohistochemical study","volume":"26","author":"Lapides","year":"2025","journal-title":"Int. J. Mol. Sci."},{"key":"10.1016\/j.jri.2026.104885_bib25","doi-asserted-by":"crossref","DOI":"10.1093\/hropen\/hoaf033","article-title":"Variability and implications of recurrent implantation failure definitions used in the scientific literature: a systematic review","volume":"2025","author":"Lu","year":"2025","journal-title":"Hum. Reprod. Open"},{"key":"10.1016\/j.jri.2026.104885_bib26","article-title":"Higher cd16\u2212 nkp46bright endometrial nk cells can predict pregnancy success in recurrent reproductive failure women","author":"Mai","year":"2024","journal-title":"Reprod. Biomed. Online"},{"key":"10.1016\/j.jri.2026.104885_bib27","doi-asserted-by":"crossref","DOI":"10.1002\/rmb2.12610","article-title":"Expression of nkp46 and other activating inhibitory receptors on uterine endometrial nk cells in females with various reproductive failures: a review","volume":"24","author":"Mai","year":"2025","journal-title":"Reprod. Med Biol."},{"key":"10.1016\/j.jri.2026.104885_bib28","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1111\/j.1749-6632.2010.05938.x","article-title":"Inflammation and pregnancy: the role of the immune system at the implantation site","volume":"1221","author":"Mor","year":"2011","journal-title":"Ann. N. Y. Acad. Sci."},{"key":"10.1016\/j.jri.2026.104885_bib29","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1146\/annurev.immunol.19.1.197","article-title":"Activating receptors and coreceptors involved in human natural killer cell-mediated cytolysis","volume":"19","author":"Moretta","year":"2001","journal-title":"Annu. Rev. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib30","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1093\/humupd\/dmac007","article-title":"Hla class ib-receptor interactions during embryo implantation and early pregnancy","volume":"28","author":"Nilsson","year":"2022","journal-title":"Hum. Reprod. Update"},{"key":"10.1016\/j.jri.2026.104885_bib31","doi-asserted-by":"crossref","first-page":"692","DOI":"10.3389\/fimmu.2016.00692","article-title":"Granule-dependent natural killer cell cytotoxicity to fungal pathogens","volume":"7","author":"Ogbomo","year":"2017","journal-title":"Front. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib32","doi-asserted-by":"crossref","first-page":"2113","DOI":"10.1084\/jem.20181454","article-title":"Nk cells switch from granzyme b to death receptor-mediated cytotoxicity during serial killing","volume":"216","author":"Prager","year":"2019","journal-title":"J. Exp. Med"},{"key":"10.1016\/j.jri.2026.104885_bib33","doi-asserted-by":"crossref","DOI":"10.1111\/aji.13667","article-title":"Cytokines, nk cells and regulatory t cell functions in normal pregnancy and reproductive failures","volume":"89","author":"Rao","year":"2023","journal-title":"Am. J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib34","doi-asserted-by":"crossref","first-page":"660","DOI":"10.1002\/eji.1830270313","article-title":"Cloning of novel immunoglobulin superfamily receptors expressed on human myeloid and lymphoid cells: structural evidence for new stimulatory and inhibitory pathways","volume":"27","author":"Samaridis","year":"1997","journal-title":"Eur. J. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib35","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1016\/j.jri.2014.12.009","article-title":"Where and when should natural killer cells be tested in women with repeated implantation failure?","volume":"108","author":"Santill\u00e1n","year":"2015","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib36","doi-asserted-by":"crossref","first-page":"430","DOI":"10.1038\/s41423-019-0206-4","article-title":"Human nk cells: Surface receptors, inhibitory checkpoints, and translational applications","volume":"16","author":"Sivori","year":"2019","journal-title":"Cell Mol. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib37","doi-asserted-by":"crossref","DOI":"10.1016\/j.jri.2021.103324","article-title":"Co-expression of nkp46 with activating or inhibitory receptors on, and cytokine production by, uterine endometrial nk cells in recurrent pregnancy loss","volume":"145","author":"Takeyama","year":"2021","journal-title":"J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib38","first-page":"59","article-title":"Normalization of endometrial histopathology and endometrial nk cells concentration predict successful pregnancy in repeated implantation failure","volume":"25","author":"Tersoglio","year":"2021","journal-title":"JBRA Assist. Reprod."},{"key":"10.1016\/j.jri.2026.104885_bib39","doi-asserted-by":"crossref","first-page":"2395","DOI":"10.1093\/humrep\/deh378","article-title":"An increase in the absolute count of cd56dimcd16+ cd69+ nk cells in the peripheral blood is associated with a poorer ivf treatment and pregnancy outcome","volume":"19","author":"Thum","year":"2004","journal-title":"Hum. Reprod."},{"key":"10.1016\/j.jri.2026.104885_bib40","doi-asserted-by":"crossref","first-page":"1272","DOI":"10.1093\/humrep\/deh774","article-title":"Simple enumerations of peripheral blood natural killer (cd56+ nk) cells, b cells and t cells have no predictive value in ivf treatment outcome","volume":"20","author":"Thum","year":"2005","journal-title":"Hum. Reprod."},{"key":"10.1016\/j.jri.2026.104885_bib41","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1038\/s41586-018-0698-6","article-title":"Single-cell reconstruction of the early maternal\u2013fetal interface in humans","volume":"563","author":"Vento-Tormo","year":"2018","journal-title":"Nature"},{"key":"10.1016\/j.jri.2026.104885_bib42","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1093\/humupd\/dmac006","article-title":"Number and function of uterine natural killer cells in recurrent miscarriage and implantation failure: a systematic review and meta-analysis","volume":"28","author":"Von Woon","year":"2022","journal-title":"Hum. Reprod. Update"},{"issue":"2020","key":"10.1016\/j.jri.2026.104885_bib43","article-title":"Natural killer cells in cancer immunotherapy","volume":"5","author":"Wang","year":"2024","journal-title":"MedComm"},{"key":"10.1016\/j.jri.2026.104885_bib44","doi-asserted-by":"crossref","DOI":"10.3389\/fimmu.2022.951482","article-title":"The role of extravillous trophoblasts and uterine nk cells in vascular remodeling during pregnancy","volume":"13","author":"Wei","year":"2022","journal-title":"Front. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib45","doi-asserted-by":"crossref","first-page":"441","DOI":"10.3389\/fimmu.2018.00441","article-title":"Nkg2d: A master regulator of immune cell responsiveness","volume":"9","author":"Wensveen","year":"2018","journal-title":"Front. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib46","doi-asserted-by":"crossref","DOI":"10.1101\/2022.11.25.517971","article-title":"Uterine nk cells underexpress kir2dl1\/s1 and lilrb1 in reproductive failure","volume":"13","author":"Woon","year":"2022","journal-title":"Front. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib47","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1111\/aji.12062","article-title":"Role of nk p46 expression in cytokine production by cd 56-positive nk cells in the peripheral blood and the uterine endometrium","volume":"69","author":"Yokota","year":"2013","journal-title":"Am. J. Reprod. Immunol."},{"key":"10.1016\/j.jri.2026.104885_bib48","doi-asserted-by":"crossref","first-page":"112","DOI":"10.5468\/ogs.23120","article-title":"Association of recurrent implantation failure and recurrent pregnancy loss with peripheral blood natural killer cells and interferon-gamma level","volume":"67","author":"Zargar","year":"2024","journal-title":"Obstet. Gynecol. Sci."},{"key":"10.1016\/j.jri.2026.104885_bib49","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/j.gendis.2019.03.005","article-title":"The number and cytotoxicity and the expression of cytotoxicity-related molecules in peripheral natural killer (nk) cells do not predict the repeated implantation failure (rif) for the in vitro fertilization patients","volume":"7","author":"Zhang","year":"2020","journal-title":"Genes Dis."},{"key":"10.1016\/j.jri.2026.104885_bib50","doi-asserted-by":"crossref","first-page":"1415","DOI":"10.1080\/14767058.2019.1638357","article-title":"Effects of hormone replacement therapy on endometrial hormone concentrations and progesterone receptor expression in recurrent pregnancy loss: a self-controlled study","volume":"34","author":"Zhang","year":"2021","journal-title":"J. Matern. -Fetal Neonatal Med."},{"key":"10.1016\/j.jri.2026.104885_bib51","doi-asserted-by":"crossref","first-page":"1931","DOI":"10.1016\/j.fertnstert.2007.08.009","article-title":"Expressions of natural cytotoxicity receptors and nkg2d on decidual natural killer cells in patients having spontaneous abortions","volume":"90","author":"Zhang","year":"2008","journal-title":"Fertil. Steril."}],"container-title":["Journal of Reproductive Immunology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0165037826000549?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0165037826000549?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T21:13:41Z","timestamp":1783026821000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0165037826000549"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6]]},"references-count":51,"alternative-id":["S0165037826000549"],"URL":"https:\/\/doi.org\/10.1016\/j.jri.2026.104885","relation":{},"ISSN":["0165-0378"],"issn-type":[{"value":"0165-0378","type":"print"}],"subject":[],"published":{"date-parts":[[2026,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Abnormal expression of ILT2, NKG2D and NKp46 receptors on natural killer cells in women with unexplained recurrent implantation failure","name":"articletitle","label":"Article Title"},{"value":"Journal of Reproductive Immunology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.jri.2026.104885","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 Published by Elsevier B.V.","name":"copyright","label":"Copyright"}],"article-number":"104885"}}