W J Kelly. Show Affiliations »
Abstract
Mesh: See more » AdultAge FactorsAttitudeContraceptionContraceptives, OralFamily Planning ServicesFemaleFollow-Up StudiesHumansIntrauterine DevicesMathematicsPuerto RicoRegression AnalysisTime Factors
Substances: See more » Contraceptives, Oral
Year: 1971 PMID: 5164000
Source DB: PubMed Journal: Demography ISSN: 0070-3370