J H Elwood. Show Affiliations »
Abstract
Entities: Disease
Mesh: See more » Anencephaly/etiologyFemaleHumansMaternal AgePregnancySpinal Dysraphism/etiologyTwins, Dizygotic
Year: 1976 PMID: 764922 PMCID: PMC1638442 DOI: 10.1136/bmj.1.6003.218-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447