T R Balakrishnan, J D Allingham, J F Kantner. Show Affiliations »
Abstract
Mesh: See more » Contraceptives, Oral/administration & dosageFemaleHumansMethodsOntarioPregnancyRetrospective StudiesSampling StudiesStatistics as Topic
Substances: See more » Contraceptives, Oral
Year: 1970 PMID: 5524650
Source DB: PubMed Journal: Demography ISSN: 0070-3370