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Abstract
Entities: Disease
Mesh: See more » Amenorrhea/chemically inducedContraceptives, Oral/adverse effectsFemaleHumansTime Factors
Substances: See more » Contraceptives, Oral
Year: 1976 PMID: 974522 PMCID: PMC1688309
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447