C R LOWE, T McKEOWN. Show Affiliations »
Abstract
Entities: Species
Keywords: PREGNANCY; SEX; VITAL STATISTICS
Mesh: See more » FemaleHumansMaternal AgePregnancySexSex RatioVital Statistics
Year: 1950 PMID: 15434307 PMCID: PMC1012554
Source DB: PubMed Journal: Br J Soc Med ISSN: 0366-0842