| Literature DB >> 4480172 |
Abstract
Entities:
Keywords: Cancer; Comparative Studies; Contraception; Contraceptive Methods--side effects; Demographic Factors; Diseases; Family Planning; Longterm Effects; Neoplasms; Oral Contraceptives--side effects; Population; Population Dynamics; Research Methodology; Studies; Time Factors
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Year: 1974 PMID: 4480172 DOI: 10.1007/bf00668032
Source DB: PubMed Journal: Arch Gynakol ISSN: 0003-9128