| Literature DB >> 4776886 |
Abstract
Entities:
Keywords: Biology; Cerebrovascular Effects; Clinical Research; Contraception; Contraceptive Methods--side effects; Family Planning; Oral Contraceptives--side effects; Physiology; Research Methodology
Mesh:
Substances:
Year: 1973 PMID: 4776886 PMCID: PMC1587866 DOI: 10.1136/bmj.4.5894.736-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447