| Literature DB >> 589235 |
Abstract
Entities:
Keywords: Amenorrhea; Contraception; Contraceptive Methods--side effects; Diseases; Family Planning; Menstruation Disorders; Oral Contraceptives--side effects
Mesh:
Substances:
Year: 1977 PMID: 589235 PMCID: PMC1632379 DOI: 10.1136/bmj.2.6099.1414
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447