W H James. Show Affiliations »
Abstract
Mesh: See more » AdultCoitusFemaleHumansIllegitimacyMaternal AgePeriodicityPregnancyPregnancy, MultipleTwins
Year: 1972 PMID: 5060693 DOI: 10.1017/s0021932000008361
Source DB: PubMed Journal: J Biosoc Sci ISSN: 0021-9320