| Literature DB >> 12268852 |
Abstract
Entities:
Keywords: Age Factors; Breast Cancer--etiology; Cancer; Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Methods--side effects; Demographic Factors; Diseases; Epidemiologic Methods; Family Planning; Longterm Effects; Neoplasms; Oral Contraceptives, Combined--side effects; Oral Contraceptives--side effects; Population; Population At Risk; Population Characteristics; Population Dynamics; Research Methodology; Time Factors
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Year: 1987 PMID： 12268852
Source DB: PubMed Journal: IPPF Med Bull ISSN： 0019-0357