{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T13:09:13Z","timestamp":1772802553866,"version":"3.50.1"},"reference-count":14,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2011,5,1]],"date-time":"2011-05-01T00:00:00Z","timestamp":1304208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2011,5,1]],"date-time":"2011-05-01T00:00:00Z","timestamp":1304208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","fertstert.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Fertility and Sterility"],"published-print":{"date-parts":[[2011,5]]},"DOI":"10.1016\/j.fertnstert.2011.02.015","type":"journal-article","created":{"date-parts":[[2011,3,7]],"date-time":"2011-03-07T22:59:46Z","timestamp":1299538786000},"page":"1966-1969","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":71,"title":["Frozen-thawed blastocyst transfer reduces ectopic pregnancy risk: an analysis of single embryo transfer cycles in Japan"],"prefix":"10.1016","volume":"95","author":[{"given":"Osamu","family":"Ishihara","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akira","family":"Kuwahara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidekazu","family":"Saitoh","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.fertnstert.2011.02.015_bib1","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1093\/humrep\/10.1.199","article-title":"Analysis of the incidence and risk factors associated with ectopic pregnancy following in-vitro fertilization and embryo transfer","volume":"10","author":"Marcus","year":"1995","journal-title":"Hum Reprod"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib2","doi-asserted-by":"crossref","first-page":"282","DOI":"10.1016\/S0015-0282(98)00441-5","article-title":"Risk factors for ectopic pregnancy in assisted reproduction","volume":"71","author":"Strandell","year":"1999","journal-title":"Fertil Steril"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib3","doi-asserted-by":"crossref","first-page":"595","DOI":"10.1097\/01.AOG.0000196503.78126.62","article-title":"Ectopic pregnancy risk with assisted reproductive technology procedures","volume":"107","author":"Clayton","year":"2006","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib4","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1097\/GCO.0b013e32833848fd","article-title":"Ectopic pregnancy after assisted reproductive technology: what are the risk factors?","volume":"22","author":"Chang","year":"2010","journal-title":"Curr Opinion Obstet Gynecol"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib5","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1007\/BF02215992","article-title":"Ectopic pregnancies after in vitro fertilization and embryo transfer","volume":"11","author":"Pyrgiotis","year":"1994","journal-title":"J Assist Reprod Genet"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib6","doi-asserted-by":"crossref","first-page":"359","DOI":"10.1080\/01443619867137","article-title":"An analysis of ectopic pregnancies following in vitro fertilisation treatment in a 10-year period","volume":"18","author":"Ng","year":"1998","journal-title":"J Obstet Gynaecol"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib7","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1159\/000213048","article-title":"Ectopic pregnancy rates after frozen versus fresh embryo transfer: a meta-analysis","volume":"68","author":"Jee","year":"2009","journal-title":"Gynecol Obstet Invest"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib8","doi-asserted-by":"crossref","first-page":"880","DOI":"10.1016\/S0140-6736(76)92096-1","article-title":"Reimplantation of a human embryo with subsequent tubal pregnancy","volume":"1","author":"Steptoe","year":"1976","journal-title":"Lancet"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib9","doi-asserted-by":"crossref","first-page":"919","DOI":"10.1016\/S0015-0282(16)56297-9","article-title":"Embryo transfer technique as a cause of ectopic pregnancy in in vitro fertilization","volume":"60","author":"Nazari","year":"1993","journal-title":"Fertil Steril"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib10","doi-asserted-by":"crossref","first-page":"1232","DOI":"10.1093\/oxfordjournals.humrep.a136125","article-title":"Heterotopic pregnancies after in-vitro fertilization and embryo transfer","volume":"10","author":"Marcus","year":"1995","journal-title":"Hum Reprod"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib11","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1186\/1471-2393-3-7","article-title":"Ectopic pregnancy rates with day 3 versus day 5 embryo transfer: a retrospective analysis","volume":"3","author":"Milki","year":"2003","journal-title":"BMC Pregnancy Childbirth"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib12","doi-asserted-by":"crossref","first-page":"734","DOI":"10.1016\/j.fertnstert.2006.11.169","article-title":"Low ectopic pregnancy rates after in vitro fertilization: do practice habits matter?","volume":"88","author":"Keegan","year":"2007","journal-title":"Fertil Steril"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib13","doi-asserted-by":"crossref","first-page":"4500","DOI":"10.1210\/jc.2008-0588","article-title":"Controlled ovarian stimulation induces a functional genomic delay of the endometrium with potential clinical implications","volume":"93","author":"Horcajadas","year":"2008","journal-title":"J Clin Endocrinol Metab"},{"key":"10.1016\/j.fertnstert.2011.02.015_bib14","doi-asserted-by":"crossref","first-page":"1764","DOI":"10.1016\/j.fertnstert.2009.10.044","article-title":"Ovarian stimulation for in vitro fertilization alters the intrauterine cytokine, chemokine, and growth factor milieu encountered by the embryo","volume":"94","author":"Boomsma","year":"2010","journal-title":"Fertil Steril"}],"container-title":["Fertility and Sterility"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0015028211002676?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0015028211002676?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T07:48:21Z","timestamp":1758008901000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0015028211002676"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,5]]},"references-count":14,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2011,5]]}},"alternative-id":["S0015028211002676"],"URL":"https:\/\/doi.org\/10.1016\/j.fertnstert.2011.02.015","relation":{},"ISSN":["0015-0282"],"issn-type":[{"value":"0015-0282","type":"print"}],"subject":[],"published":{"date-parts":[[2011,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Frozen-thawed blastocyst transfer reduces ectopic pregnancy risk: an analysis of single embryo transfer cycles in Japan","name":"articletitle","label":"Article Title"},{"value":"Fertility and Sterility","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.fertnstert.2011.02.015","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}