{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T21:10:07Z","timestamp":1761513007473,"version":"3.44.0"},"reference-count":29,"publisher":"Elsevier BV","issue":"6","license":[{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2011,12,1]],"date-time":"2011-12-01T00:00:00Z","timestamp":1322697600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["ajog.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics and Gynecology"],"published-print":{"date-parts":[[2011,12]]},"DOI":"10.1016\/j.ajog.2011.06.103","type":"journal-article","created":{"date-parts":[[2011,7,21]],"date-time":"2011-07-21T12:19:54Z","timestamp":1311250794000},"page":"549.e1-549.e7","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":25,"title":["Mean, lowest, and highest pulsatility index of the uterine artery and adverse pregnancy outcome in twin pregnancies"],"prefix":"10.1016","volume":"205","author":[{"given":"Katharina","family":"Klein","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mariella","family":"Mailath-Pokorny","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marie","family":"Elhenicky","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maximilian","family":"Schmid","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harald","family":"Zeisler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christof","family":"Worda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajog.2011.06.103_bib1","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1055\/s-2001-12937","article-title":"Adverse perinatal outcome of twin pregnancies according to chorionicity: review of the literature","volume":"18","author":"Sherer","year":"2001","journal-title":"Am J Perinatol"},{"key":"10.1016\/j.ajog.2011.06.103_bib2","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.ajog.2011.06.103_bib3","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1159\/000313300","article-title":"Monochorionic diamniotic twin pregnancies: natural history and risk stratification","volume":"27","author":"Lewi","year":"2010","journal-title":"Fetal Diagn Ther"},{"year":"2005","series-title":"Make every mother and child count","key":"10.1016\/j.ajog.2011.06.103_bib4"},{"year":"2008","series-title":"Perinatal mortality 2006: England, Wales and Northern Ireland","key":"10.1016\/j.ajog.2011.06.103_bib5"},{"key":"10.1016\/j.ajog.2011.06.103_bib6","first-page":"159","article-title":"ACOG practice bulletin no. 33: diagnosis and management of pre-eclampsia and eclampsia: January 2002","volume":"99","year":"2002","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib7","doi-asserted-by":"crossref","first-page":"938","DOI":"10.1016\/S0002-9378(00)70350-4","article-title":"Hypertensive disorders in twin versus singleton gestations","volume":"182","author":"Sibai","year":"2000","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib8","doi-asserted-by":"crossref","first-page":"197","DOI":"10.3109\/10641959909016193","article-title":"Preeclampsia in twin pregnancies: incidence and outcome","volume":"18","author":"Campbell","year":"1999","journal-title":"Hypertens Pregnancy"},{"key":"10.1016\/j.ajog.2011.06.103_bib9","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1375\/twin.5.1.8","article-title":"Hypertensive disease in twin pregnancies: a review","volume":"5","author":"Krotz","year":"2002","journal-title":"Twin Res"},{"key":"10.1016\/j.ajog.2011.06.103_bib10","doi-asserted-by":"crossref","first-page":"569","DOI":"10.1002\/path.1700930218","article-title":"The physiological response of the vessels of the placental bed to normal pregnancy","volume":"93","author":"Brosens","year":"1967","journal-title":"J Pathol Bacteriol"},{"key":"10.1016\/j.ajog.2011.06.103_bib11","first-page":"365","article-title":"Transvaginal color Doppler assessment of the uteroplacental circulation in early pregnancy","volume":"77","author":"Jurkovic","year":"1991","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib12","doi-asserted-by":"crossref","first-page":"1040","DOI":"10.1111\/j.1471-0528.1989.tb03378.x","article-title":"Uteroplacental Doppler flow velocity waveforms in the second trimester","volume":"96","author":"Bewley","year":"1989","journal-title":"Br J Obstet Gynaecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib13","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1046\/j.1469-0705.1997.10020112.x","article-title":"Reference resistance indices of the umbilical, fetal middle cerebral and uterine arteries at 24-42 weeks of gestation","volume":"10","author":"Kurmanavicius","year":"1997","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib14","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1111\/j.1471-0528.1994.tb13182.x","article-title":"A study of placental bed spiral arteries and trophoblastic invasion in normal and severe pre-eclamptic pregnancies","volume":"101","author":"Meekins","year":"1994","journal-title":"Br J Obstet Gynaecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib15","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1016\/S0140-6736(83)91970-0","article-title":"New Doppler technique for assessing uteroplacental blood flow","volume":"1","author":"Campell","year":"1983","journal-title":"Lancet"},{"key":"10.1016\/j.ajog.2011.06.103_bib16","doi-asserted-by":"crossref","first-page":"583","DOI":"10.1046\/j.0960-7692.2001.00594.x","article-title":"Screening for pre-eclampsia and fetal growth restriction by uterine artery Doppler at 11-14 weeks of gestation","volume":"18","author":"Martin","year":"2001","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib17","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1046\/j.0960-7692.2001.00572.x","article-title":"Multicenter screening for pre-eclampsia and fetal growth restriction by transvaginal uterine artery Doppler at 23 weeks of gestation","volume":"18","author":"Papageorghiou","year":"2001","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib18","doi-asserted-by":"crossref","first-page":"742","DOI":"10.1002\/uog.5157","article-title":"Uterine artery Doppler at 11 + 0 to 13 + 6 weeks in the prediction of pre-eclampsia","volume":"30","author":"Plasencia","year":"2007","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib19","doi-asserted-by":"crossref","first-page":"802","DOI":"10.1002\/uog.2814","article-title":"Sequential changes in uterine artery blood flow pattern between the first and second trimesters of gestation in relation to pregnancy outcome","volume":"28","author":"G\u00f3mez","year":"2006","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib20","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1002\/uog.7602","article-title":"Persistence of increased uterine artery resistance in the third trimester and pregnancy outcome","volume":"36","author":"Ghi","year":"2010","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib21","doi-asserted-by":"crossref","first-page":"535","DOI":"10.1046\/j.1469-0705.2002.00865.x","article-title":"Screening for pre-eclampsia and fetal growth restriction in twin pregnancies at 23 weeks of gestation by transvaginal uterine artery Doppler","volume":"20","author":"Yu","year":"2002","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib22","doi-asserted-by":"crossref","first-page":"541","DOI":"10.1046\/j.1469-0705.2002.00866.x","article-title":"Doppler assessment of the uterine circulation in the second trimester in twin pregnancies: prediction of pre-eclampsia, small for gestational age and birth weight discordance","volume":"20","author":"Geipel","year":"2002","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib23","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1002\/uog.6452","article-title":"Hypertensive disorders in pregnancy: screening by uterine artery Doppler at 11-13 weeks","volume":"34","author":"Poon","year":"2009","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib24","doi-asserted-by":"crossref","first-page":"573","DOI":"10.1002\/uog.7645","article-title":"Sensitivity of higher, lower and mean second-trimester uterine artery Doppler resistance indices in screening for pre-eclampsia","volume":"36","author":"Napolitano","year":"2010","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib25","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1055\/s-1999-15372","article-title":"Analysis of births in Germany, part 3: birth weight, length and head circumference of twins","volume":"59","author":"Voigt","year":"1999","journal-title":"Geburtsh Frauenheilk"},{"key":"10.1016\/j.ajog.2011.06.103_bib26","doi-asserted-by":"crossref","first-page":"IX","DOI":"10.3109\/10641950109152635","article-title":"The classification and diagnosis of the hypertensive disorders of pregnancy: statement from the International Society for the Study of Hypertension in Pregnancy (ISSHP)","volume":"20","author":"Brown","year":"2001","journal-title":"Hypertens Pregnancy"},{"year":"2008","series-title":"Applied survival analysis: regression modelling of time to event data","author":"Hosmer","key":"10.1016\/j.ajog.2011.06.103_bib27"},{"key":"10.1016\/j.ajog.2011.06.103_bib28","first-page":"978","article-title":"Uterine artery doppler velocity waveforms in twin pregnancies","volume":"82","author":"Rizzo","year":"1993","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.ajog.2011.06.103_bib29","doi-asserted-by":"crossref","first-page":"565","DOI":"10.1136\/bmj.38380.674340.E0","article-title":"Risk factors for pre-eclampsia at antenatal booking: a systematic review of controlled studies","volume":"330","author":"Duckitt","year":"2005","journal-title":"BMJ"}],"container-title":["American Journal of Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937811008982?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937811008982?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T10:42:06Z","timestamp":1757587326000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002937811008982"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,12]]},"references-count":29,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2011,12]]}},"alternative-id":["S0002937811008982"],"URL":"https:\/\/doi.org\/10.1016\/j.ajog.2011.06.103","relation":{},"ISSN":["0002-9378"],"issn-type":[{"type":"print","value":"0002-9378"}],"subject":[],"published":{"date-parts":[[2011,12]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Mean, lowest, and highest pulsatility index of the uterine artery and adverse pregnancy outcome in twin pregnancies","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics and Gynecology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajog.2011.06.103","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2011 Mosby, Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}