title: Oral contraceptives may tend to protect against benign breast cancer.
mesh_terms: D001943:Breast Neoplasms; D003267:Contraception; D003276:Contraceptives, Oral; D004194:Disease; D004812:Epidemiologic Methods; D005193:Family Planning Services; D009369:Neoplasms; D015995:Prevalence; D012106:Research; D012107:Research Design; D012189:Retrospective Studies
chemical_list: D003276:Contraceptives, Oral
keywords: Breast Cancer; Cancer; Contraception; Contraceptive Methods--side effects; Diseases; Epidemiologic Methods; Family Planning; Measurement; Neoplasms; Oral Contraceptives--side effects; Prevalence; Research Methodology; Retrospective Studies; Studies