A P John. Show Affiliations »
Abstract
Mesh: See more » AdultAge FactorsCoitusContraceptionContraceptive DevicesContraceptives, OralEnglandFamily Planning ServicesFamily PracticeFemaleGroup PracticeHumansMaleMarriageMiddle AgedPregnancyState Medicine
Substances: See more » Contraceptives, Oral
Year: 1973 PMID: 4787889 PMCID: PMC2157155
Source DB: PubMed Journal: J R Coll Gen Pract ISSN: 0035-8797