{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T05:26:53Z","timestamp":1773984413672,"version":"3.50.1"},"reference-count":12,"publisher":"Oxford University Press (OUP)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2007,6,1]]},"DOI":"10.1093\/humrep\/dem073","type":"journal-article","created":{"date-parts":[[2007,4,27]],"date-time":"2007-04-27T20:40:35Z","timestamp":1177706435000},"page":"1744-1750","source":"Crossref","is-referenced-by-count":69,"title":["Rationalizing the follow-up of pregnancies of unknown location"],"prefix":"10.1093","volume":"22","author":[{"given":"E.","family":"Kirk","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Condous","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Van Calster","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Van Huffel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Timmerman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Bourne","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2007,4,27]]},"reference":[{"key":"key\n\t\t\t\t20171012152214_DEM073C1","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1046\/j.1469-0705.1999.14040231.x","article-title":"The expectant management of women with early pregnancies of unknown location","volume":"14","author":"Banerjee","year":"1999","journal-title":"Ultrasound Obstet Gynecol"},{"key":"key\n\t\t\t\t20171012152214_DEM073C2","first-page":"158","article-title":"Expectant management of early pregnancies of unknown location: a prospective evaluation of methods to predict spontaneous resolution of pregnancy","volume":"108","author":"Banerjee","year":"2001","journal-title":"BJOG"},{"key":"key\n\t\t\t\t20171012152214_DEM073C3","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1016\/j.ijgo.2004.04.004","article-title":"Human chorionic gonadotrophin and progesterone levels for the investigation of pregnancies of unknown location","volume":"86","author":"Condous","year":"2004","journal-title":"Int J Gynecol Obstet"},{"key":"key\n\t\t\t\t20171012152214_DEM073C4","doi-asserted-by":"crossref","first-page":"1900","DOI":"10.1093\/humrep\/deh341","article-title":"The use of a new logistic regression model for predicting the outcome of pregnancies of unknown location","volume":"19","author":"Condous","year":"2004","journal-title":"Hum Reprod"},{"key":"key\n\t\t\t\t20171012152214_DEM073C5","doi-asserted-by":"crossref","first-page":"1398","DOI":"10.1093\/humrep\/deh746","article-title":"A prospective evaluation of a single-visit strategy to manage pregnancies of unknown location","volume":"20","author":"Condous","year":"2005","journal-title":"Hum Reprod"},{"key":"key\n\t\t\t\t20171012152214_DEM073C6","doi-asserted-by":"crossref","first-page":"1404","DOI":"10.1093\/humrep\/deh770","article-title":"The accuracy of transvaginal ultrasonography for the diagnosis of ectopic pregnancy prior to surgery","volume":"20","author":"Condous","year":"2005","journal-title":"Hum Reprod"},{"key":"key\n\t\t\t\t20171012152214_DEM073C7","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.1471-0528.2006.00924.x","article-title":"Failing pregnancies of unknown location: a prospective evaluation of the human chorionic gonadotrophin ratio","volume":"113","author":"Condous","year":"2006","journal-title":"BJOG"},{"key":"key\n\t\t\t\t20171012152214_DEM073C8","article-title":"Prediction of ectopic pregnancy in women with a pregnancy of unknown location","author":"Condous","journal-title":"Ultrasound Obstet Gynecol"},{"key":"key\n\t\t\t\t20171012152214_DEM073C9","volume-title":"Ultrasound in Gynecology","author":"Goldstein"},{"key":"key\n\t\t\t\t20171012152214_DEM073C10","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1148\/radiology.143.1.7063747","article-title":"The meaning and use of the area under a receiver operating characteristic (ROC) curve","volume":"143","author":"Hanley","year":"1982","journal-title":"Radiology"},{"key":"key\n\t\t\t\t20171012152214_DEM073C11","doi-asserted-by":"crossref","first-page":"783","DOI":"10.1016\/S0015-0282(16)53933-8","article-title":"Further observations on the doubling time of human chorionic gonadotropin in early asymptomatic pregnancies","volume":"54","author":"Kadar","year":"1990","journal-title":"Fertil Steril"},{"key":"key\n\t\t\t\t20171012152214_DEM073C12","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1002\/uog.2702","article-title":"The practical application of a mathematical model to predict the outcome of pregnancies of unknown location","volume":"27","author":"Kirk","year":"2006","journal-title":"Ultrasound Obstet Gynecol"}],"container-title":["Human Reproduction"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/humrep\/article-pdf\/22\/6\/1744\/1681118\/dem073.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,10,12]],"date-time":"2017-10-12T16:19:03Z","timestamp":1507825143000},"score":1,"resource":{"primary":{"URL":"http:\/\/academic.oup.com\/humrep\/article\/22\/6\/1744\/611225\/Rationalizing-the-followup-of-pregnancies-of"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,4,27]]},"references-count":12,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2007,4,27]]},"published-print":{"date-parts":[[2007,6,1]]}},"URL":"https:\/\/doi.org\/10.1093\/humrep\/dem073","relation":{},"ISSN":["1460-2350","0268-1161"],"issn-type":[{"value":"1460-2350","type":"electronic"},{"value":"0268-1161","type":"print"}],"subject":[],"published-other":{"date-parts":[[2007,6]]},"published":{"date-parts":[[2007,4,27]]}}}