{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T02:46:30Z","timestamp":1771296390818,"version":"3.50.1"},"reference-count":23,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T00:00:00Z","timestamp":1627776000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","ejog.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"published-print":{"date-parts":[[2021,8]]},"DOI":"10.1016\/j.ejogrb.2021.06.016","type":"journal-article","created":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T18:24:28Z","timestamp":1623781468000},"page":"50-55","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":6,"special_numbering":"C","title":["Open-legs axial plane: A standardized methodology and reference values for fetal genital biometry in mid-trimester ultrasound"],"prefix":"10.1016","volume":"263","author":[{"given":"\u00c1lvaro","family":"L\u00f3pez-Soto","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jose L","family":"Meseguer-Gonz\u00e1lez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Javier","family":"Garv\u00ed-Morcillo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Beltr\u00e1n-S\u00e1nchez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u00c1ngeles","family":"J\u00f3dar-P\u00e9rez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Inmaculada","family":"Mart\u00ednez-Rivero","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olivia","family":"Garc\u00eda-Izquierdo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maribel","family":"Urbano-Reyes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roc\u00edo","family":"L\u00f3pez-P\u00e9rez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan P.","family":"Mart\u00ednez-Cend\u00e1n","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ejogrb.2021.06.016_b0005","doi-asserted-by":"crossref","first-page":"1160","DOI":"10.1002\/pd.2854","article-title":"Sonographic measurement of corpus spongiosum in male fetuses","volume":"31","author":"Vuillard","year":"2011","journal-title":"Prenat Diagn"},{"issue":"9","key":"10.1016\/j.ejogrb.2021.06.016_b0010","doi-asserted-by":"crossref","first-page":"829","DOI":"10.1002\/pd.3913","article-title":"Reference values for fetal penile length and width from 22 to 36 gestational weeks","volume":"32","author":"Danon","year":"2012","journal-title":"Prenat Diagn"},{"issue":"2","key":"10.1016\/j.ejogrb.2021.06.016_b0015","doi-asserted-by":"crossref","first-page":"88","DOI":"10.3109\/15513815.2015.1135494","article-title":"Sonographic assessment of the fetal penile development","volume":"35","author":"Akpinar","year":"2016","journal-title":"Fetal Pediatr Pathol"},{"issue":"3","key":"10.1016\/j.ejogrb.2021.06.016_b0020","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1002\/uog.9022","article-title":"Penile biometry on prenatal magnetic resonance imaging","volume":"39","author":"Nemec","year":"2012","journal-title":"Ultrasound Obstet Gynecol"},{"issue":"October","key":"10.1016\/j.ejogrb.2021.06.016_b0025","doi-asserted-by":"crossref","first-page":"1283","DOI":"10.1002\/pd.2885","article-title":"Prenatal sonographic evaluation of the penile length","volume":"31","author":"Perlitz","year":"2011","journal-title":"Prenat Diagn"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0030","doi-asserted-by":"crossref","unstructured":"Nemec U, Weber M, Kasprian G, Krestan CR, Graham JM, Prayer D. Female external genitalia on fetal magnetic resonance imaging. 2011;(February):695\u2013700.","DOI":"10.1002\/uog.8973"},{"issue":"2","key":"10.1016\/j.ejogrb.2021.06.016_b0035","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1046\/j.1469-0705.2001.00216.x","article-title":"The development of the fetal penis\u2013an in utero sonographic evaluation","volume":"17","author":"Zalel","year":"2001","journal-title":"Ultrasound Obstet Gynecol"},{"issue":"9","key":"10.1016\/j.ejogrb.2021.06.016_b0040","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1002\/jcu.10207","article-title":"Normal growth and development of fetal external genitalia demonstrated by sonography","volume":"31","author":"Pinette","year":"2003","journal-title":"J Clin Ultrasound"},{"issue":"11","key":"10.1016\/j.ejogrb.2021.06.016_b0045","doi-asserted-by":"crossref","first-page":"2057","DOI":"10.7863\/ultra.14.12064","article-title":"Prenatal diagnosis and perinatal outcomes of congenital megalourethra: a multicenter cohort study and systematic review of the literature","volume":"34","author":"Moaddab","year":"2015","journal-title":"J Ultrasound Med"},{"issue":"8","key":"10.1016\/j.ejogrb.2021.06.016_b0050","doi-asserted-by":"crossref","first-page":"759","DOI":"10.1016\/S0022-5347(17)70767-7","article-title":"Normal growth and variation in the male genitalia from birth to maturity","volume":"48","author":"Schonfield","year":"1942","journal-title":"J Urol"},{"issue":"5","key":"10.1016\/j.ejogrb.2021.06.016_b0055","doi-asserted-by":"crossref","first-page":"555","DOI":"10.5468\/ogs.20087","article-title":"Sonographic measure techniques of fetal penile length","volume":"63","author":"L\u00f3pez Soto","year":"2020","journal-title":"Obs Gynecol Sci"},{"issue":"4","key":"10.1016\/j.ejogrb.2021.06.016_b0060","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1046\/j.1469-0705.2000.00090.x","article-title":"Fetal penile length","volume":"15","author":"Johnson","year":"2000","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0065","doi-asserted-by":"crossref","first-page":"405","DOI":"10.1046\/j.0960-7692.2001.00477.x","article-title":"Fetal penile erection","volume":"18","author":"Jakobovits","year":"2001","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0070","doi-asserted-by":"crossref","unstructured":"Epelboym Y, Estrada C, Estroff J. Ultrasound diagnosis of fetal hypospadias: Accuracy and outcomes. J Pediatr Urol [Internet]. 2017;13(5):484.e1-484.e4. DOI: 10.1016\/j.jpurol.2017.02.022.","DOI":"10.1016\/j.jpurol.2017.02.022"},{"issue":"4","key":"10.1016\/j.ejogrb.2021.06.016_b0075","doi-asserted-by":"crossref","first-page":"242","DOI":"10.1046\/j.1469-0705.1998.11040242.x","article-title":"Development of fetal male gender: prenatal sonographic measurement of the scrotum and evaluation of testicular descent","volume":"11","author":"Achiron","year":"1998","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0080","doi-asserted-by":"crossref","unstructured":"Fahmy MAB, El Shennawy AAA, Edress AM. Spectrum of penoscrotal positional anomalies in children. Int J Surg [Internet]. 2014;12(9):983\u20138. DOI: 10.1016\/j.ijsu.2014.08.001.","DOI":"10.1016\/j.ijsu.2014.08.001"},{"issue":"3","key":"10.1016\/j.ejogrb.2021.06.016_b0085","first-page":"501","article-title":"Accessory scrotum with perineal lipoma diagnosed prenatally: case report and review of the literature","volume":"77","author":"Murase","year":"2015","journal-title":"Nagoya J Med Sci"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0090","doi-asserted-by":"crossref","first-page":"1397","DOI":"10.7863\/jum.2011.30.10.1397","article-title":"Prenatal diagnosis of penoscrotal transposition with 2- and 3-dimensional ultrasonography","volume":"30","author":"Wang","year":"2011","journal-title":"J Ultrasound Med"},{"issue":"7","key":"10.1016\/j.ejogrb.2021.06.016_b0095","doi-asserted-by":"crossref","first-page":"E251","DOI":"10.5489\/cuaj.4585","article-title":"Canadian Urological Association-Pediatric Urologists of Canada (CUA-PUC) guideline for the diagnosis, management, and followup of cryptorchidism","volume":"11","author":"Braga","year":"2017","journal-title":"Can Urol Assoc J"},{"issue":"2","key":"10.1016\/j.ejogrb.2021.06.016_b0100","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1002\/pd.4512","article-title":"Fetal diagnosis of testicular torsion: What shall we tell the parents?","volume":"35","author":"Melcer","year":"2015","journal-title":"Prenat Diagn"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0105","first-page":"317","article-title":"Prenatal sonographic evaluation of male genitalia development","volume":"60","author":"Zampieri","year":"2008","journal-title":"Minerva Ginecol"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0110","first-page":"1","article-title":"Clitoral size in term newborns in Kumasi","volume":"6","author":"Asafo-agyei","year":"2017","journal-title":"Ghana. Int J Pediatr Endocrinol"},{"key":"10.1016\/j.ejogrb.2021.06.016_b0115","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1007\/s00276-019-02383-9","article-title":"Assessment of clitoral anatomy in human fetuses","volume":"42","author":"\u0130sbir","year":"2020","journal-title":"Surg Radiol Anat"}],"container-title":["European Journal of Obstetrics & Gynecology and Reproductive Biology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211521002955?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0301211521002955?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T05:52:33Z","timestamp":1759557153000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0301211521002955"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,8]]},"references-count":23,"alternative-id":["S0301211521002955"],"URL":"https:\/\/doi.org\/10.1016\/j.ejogrb.2021.06.016","relation":{},"ISSN":["0301-2115"],"issn-type":[{"value":"0301-2115","type":"print"}],"subject":[],"published":{"date-parts":[[2021,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Open-legs axial plane: A standardized methodology and reference values for fetal genital biometry in mid-trimester ultrasound","name":"articletitle","label":"Article Title"},{"value":"European Journal of Obstetrics & Gynecology and Reproductive Biology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ejogrb.2021.06.016","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier B.V. All rights reserved.","name":"copyright","label":"Copyright"}]}}