S ALBERT, K TOMSON, R R SMALL. Show Affiliations »
Abstract
Keywords: BIRTH ORDER; SEX
Mesh: See more » Birth OrderHumansSexSex Ratio
Year: 1961 PMID: 13682104 DOI: 10.1007/bf02158183
Source DB: PubMed Journal: Experientia ISSN: 0014-4754