{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T01:58:26Z","timestamp":1784685506339,"version":"3.55.0"},"reference-count":42,"publisher":"Elsevier BV","issue":"2","content-domain":{"domain":["bestpracticeobgyn.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Best Practice & Research Clinical Obstetrics & Gynaecology"],"published-print":{"date-parts":[[2014,2]]},"DOI":"10.1016\/j.bpobgyn.2013.11.001","type":"journal-article","created":{"date-parts":[[2013,12,3]],"date-time":"2013-12-03T12:02:18Z","timestamp":1386072138000},"page":"319-326","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":11,"title":["Timing of birth in multiple pregnancy"],"prefix":"10.1016","volume":"28","author":[{"given":"Tiran","family":"Dias","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ranjit","family":"Akolekar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.bpobgyn.2013.11.001_bib1","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1016\/j.bpobgyn.2006.09.011","article-title":"Iatrogenic multiple pregnancy?","volume":"21","author":"Verberg","year":"2007","journal-title":"Best Pract Res Clin Obstet Gynaecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib2","series-title":"Births: final data for 2006, in national vital statistics reports","volume":"vol. 57, No 7","author":"Martin","year":"2009"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib3","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1002\/uog.10057","article-title":"Influence of chorionicity on perinatal outcome in a large cohort of Danish twin pregnancies","volume":"39","author":"Oldenburg","year":"2012","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib4","series-title":"Multiple pregnancy: the management of twin and triplet pregnancies in the antenatal period [CG129]","year":"2011"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib5","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1053\/j.semperi.2005.08.003","article-title":"Addressing the growing problem of multiple gestations created by assisted reproductive therapies","volume":"29","author":"Nakhuda","year":"2005","journal-title":"Semin Perinatol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib6","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1530\/REP-08-0206","article-title":"Monozygotic twinning associated with assisted reproductive technologies: a review","volume":"136","author":"Aston","year":"2008","journal-title":"Reproduction"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib7","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1093\/humupd\/dmn045","article-title":"The risk of monozygotic twins after assisted reproductive technology: a systematic review and meta-analysis","volume":"15","author":"Vitthala","year":"2009","journal-title":"Hum Reprod Update"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib8","doi-asserted-by":"crossref","first-page":"638","DOI":"10.1016\/S0029-7844(02)02174-9","article-title":"Prospective risk of stillbirth in multiple-gestation pregnancies: a population-based analysis","volume":"100","author":"Sairam","year":"2002","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib9","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1002\/uog.10130","article-title":"Gestational age at cervical length measurement and preterm birth in twins","volume":"40","author":"Ehsanipoor","year":"2012","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib10","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1038\/sj.jp.7211205","article-title":"Indicated and nonindicated preterm delivery in twin gestations: impact on neonatal outcome and cost","volume":"25","author":"Elliott","year":"2005","journal-title":"J\u00a0Perinatol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib11","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1375\/twin.9.1.81","article-title":"Perinatal and early childhood outcomes of twins versus triplets","volume":"9","author":"Luke","year":"2006","journal-title":"Twin Res Hum Genet"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib12","doi-asserted-by":"crossref","first-page":"979","DOI":"10.1111\/j.1471-0528.2010.02592.x","article-title":"First-trimester ultrasound dating of twin pregnancy: are singleton charts reliable?","volume":"117","author":"Dias","year":"2010","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib13","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1002\/uog.7740","article-title":"Second-trimester assessment of gestational age in twins: validation of singleton biometry charts","volume":"37","author":"Dias","year":"2011","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib14","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1111\/j.1471-0528.2011.03250.x","article-title":"Prediction of selective fetal growth restriction and twin-to-twin transfusion syndrome in monochorionic twins","volume":"119","author":"Memmo","year":"2012","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib15","doi-asserted-by":"crossref","first-page":"1223","DOI":"10.1111\/j.1471-0528.2011.03009.x","article-title":"Is first-trimester crown\u2013rump length associated with birthweight?","volume":"118","author":"Salomon","year":"2011","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib16","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1111\/j.1471-0528.2011.03217.x","article-title":"Is first-trimester crown-rump length associated with birthweight?","volume":"119","author":"Dias","year":"2012","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib17","doi-asserted-by":"crossref","first-page":"1203","DOI":"10.1111\/j.1471-0528.1997.tb10948.x","article-title":"The hidden mortality of monochorionic twin pregnancies","volume":"104","author":"Sebire","year":"1997","journal-title":"Br J Obstet Gynaecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib18","doi-asserted-by":"crossref","first-page":"80","DOI":"10.4038\/cmj.v55i3.2291","article-title":"Early pregnancy growth and pregnancy outcome in twin pregnancies","volume":"55","author":"Dias","year":"2010","journal-title":"Ceylon Med J"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib19","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1002\/uog.6396","article-title":"Relationship of intertwin crown-rump length discrepancy to chorionicity, fetal demise and birth-weight discordance","volume":"34","author":"Bhide","year":"2009","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib20","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1046\/j.1469-0705.1997.08060429-2.x","article-title":"The lambda sign in twin pregnancies","volume":"8","author":"Sepulveda","year":"1996","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib21","doi-asserted-by":"crossref","first-page":"530","DOI":"10.1002\/uog.8956","article-title":"First-trimester ultrasound determination of chorionicity in twin pregnancy","volume":"38","author":"Dias","year":"2011","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib22","doi-asserted-by":"crossref","first-page":"976","DOI":"10.1016\/j.placenta.2008.08.019","article-title":"Placental characteristics of monochorionic diamniotic twin pregnancies in relation to perinatal outcome","volume":"29","author":"Hack","year":"2008","journal-title":"Placenta"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib23","doi-asserted-by":"crossref","first-page":"632","DOI":"10.1002\/uog.12363","article-title":"Early fetal loss in monochorionic and dichorionic twin pregnancies: analysis of the Southwest Thames Obstetric Research Collaborative (STORK) multiple pregnancy cohort","volume":"41","author":"D'Antonio","year":"2013","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib24","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.placenta.2006.01.010","article-title":"Twin anemia-polycythemia sequence in two monochorionic twin pairs without oligopolyhydramnios sequence","volume":"28","author":"Lopriore","year":"2007","journal-title":"Placenta"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib25","doi-asserted-by":"crossref","first-page":"514","DOI":"10.1016\/j.ajog.2008.03.050","article-title":"The outcome of monochorionic diamniotic twin gestations in the era of invasive fetal therapy: a prospective cohort study","volume":"199","author":"Lewi","year":"2008","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib26","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1016\/j.bpobgyn.2004.04.011","article-title":"Management of other complications specific to monochorionic twin pregnancies","volume":"18","author":"Pasquini","year":"2004","journal-title":"Best Pract Re Res Clin Obstet Gynaecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib27","doi-asserted-by":"crossref","first-page":"656","DOI":"10.1016\/S0029-7844(99)00645-6","article-title":"Growth pattern of twins of different chorionicity evaluated by sonographic biometry","volume":"95","author":"Senoo","year":"2000","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib28","doi-asserted-by":"crossref","first-page":"759","DOI":"10.1002\/pd.1262","article-title":"Discordant growth in twins","volume":"25","author":"Kingdom","year":"2005","journal-title":"Prenat Diagn"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib29","doi-asserted-by":"crossref","first-page":"607","DOI":"10.3109\/14767050903229622","article-title":"Neonatal morbidity and mortality of late-preterm babies","volume":"23","author":"Kalyoncu","year":"2010","journal-title":"J\u00a0Matern Fetal Neonatal Med"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib30","doi-asserted-by":"crossref","first-page":"500","DOI":"10.1002\/uog.11110","article-title":"Prospective risk of late stillbirth in monochorionic twins: a regional cohort study. Southwest Thames Obstetric Research Collaborative (STORK)","volume":"39","author":"Dias","year":"2012","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib31","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1111\/j.1471-0528.2007.01556.x","article-title":"Increased perinatal mortality and morbidity in monochorionic versus dichorionic twin pregnancies: clinical implications of a large Dutch cohort study","volume":"115","author":"Hack","year":"2008","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib32","doi-asserted-by":"crossref","first-page":"685","DOI":"10.1016\/S0029-7844(03)00616-1","article-title":"Prospective risk of fetal death in singleton, twin, and triplet gestations: implications for practice","volume":"102","author":"Kahn","year":"2003","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib33","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1515\/jpm.2010.110","article-title":"Prospective risk of stillbirth in monochorionic-diamniotic twin gestations: a population based study","volume":"39","author":"Tul","year":"2011","journal-title":"J\u00a0Perinat Med"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib34","doi-asserted-by":"crossref","first-page":"301","DOI":"10.1097\/AOG.0b013e318160d65d","article-title":"Twin chorionicity and the risk of stillbirth","volume":"111","author":"Lee","year":"2008","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib35","doi-asserted-by":"crossref","first-page":"134","DOI":"10.1016\/j.ajog.2006.01.099","article-title":"Prospective risk of intrauterine death of monochorionic-diamniotic twins","volume":"195","author":"Sim\u00f5es","year":"2006","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib36","doi-asserted-by":"crossref","first-page":"e172","DOI":"10.1371\/journal.pmed.0020172","article-title":"High risk of unexpected late fetal death in monochorionic twins despite intensive ultrasound surveillance: a cohort study","volume":"2","author":"Barigye","year":"2005","journal-title":"PLoS Med"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib37","doi-asserted-by":"crossref","first-page":"1077","DOI":"10.3109\/14767050903042579","article-title":"Should apparently uncomplicated monochorionic twins be delivered electively at 32 weeks?","volume":"22","author":"Domingues","year":"2009","journal-title":"J\u00a0Matern Fetal Neonatal Med"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib38","doi-asserted-by":"crossref","first-page":"e1","DOI":"10.1016\/j.ajog.2010.02.066","article-title":"Contemporary management of monochorionic diamniotic twins: outcomes and delivery recommendations revisited","volume":"203","author":"Smith","year":"2010","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib39","doi-asserted-by":"crossref","first-page":"1090","DOI":"10.1111\/j.1471-0528.2011.02955.x","article-title":"Perinatal mortality and mode of delivery in monochorionic diamniotic twin pregnancies \u2265 32 weeks of gestation: a multicentre retrospective cohort study","volume":"118","author":"Hack","year":"2011","journal-title":"BJOG"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib40","doi-asserted-by":"crossref","first-page":"382","DOI":"10.1111\/j.1600-0412.2011.01288.x","article-title":"Prospective risk of fetal death in uncomplicated monochorionic twins","volume":"91","author":"Farah","year":"2012","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib41","doi-asserted-by":"crossref","first-page":"1318","DOI":"10.1097\/AOG.0b013e318292766b","article-title":"Increased stillbirth in uncomplicated monochorionic twin pregnancies: a systematic review and meta-analysis","volume":"121","author":"Danon","year":"2013","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.bpobgyn.2013.11.001_bib42","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.ejogrb.2012.10.020","article-title":"Neonatal respiratory morbidity in twins versus singletons after elective prelabor caesarean section","volume":"166","author":"Ghi","year":"2013","journal-title":"Eur J Obstet Gynecol Reprod Biol"}],"container-title":["Best Practice & Research Clinical Obstetrics & Gynaecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1521693413001521?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1521693413001521?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2018,10,8]],"date-time":"2018-10-08T14:59:36Z","timestamp":1539010776000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1521693413001521"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,2]]},"references-count":42,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2014,2]]}},"alternative-id":["S1521693413001521"],"URL":"https:\/\/doi.org\/10.1016\/j.bpobgyn.2013.11.001","relation":{},"ISSN":["1521-6934"],"issn-type":[{"value":"1521-6934","type":"print"}],"subject":[],"published":{"date-parts":[[2014,2]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Timing of birth in multiple pregnancy","name":"articletitle","label":"Article Title"},{"value":"Best Practice & Research Clinical Obstetrics & Gynaecology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.bpobgyn.2013.11.001","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2013 Elsevier Ltd. All rights reserved.","name":"copyright","label":"Copyright"}]}}