@article{edbffa2afa6b46098c197ca83610bd99,
title = "OP31.01: Presentation of twins at delivery compared to ultrasound at 32, 34 and 36 gestational weeks",
keywords = "Medicine, Presentation (obstetrics), Gestational age, Vertex (graph theory), Vaginal delivery, Obstetrics, Twin Pregnancy, Gestation, Pediatrics, Pregnancy, Graph, Genetics, Mathematics, Discrete mathematics, Biology",
author = "Higgins, \{John R\}",
year = "2011",
doi = "10.1002/uog.9545",
language = "English",
journal = "Ultrasound in Obstetrics and Gynecology",
issn = "0960-7692",
publisher = "John Wiley and Sons Ltd",
}