title: Comment on OC use early in life and breast cancer risk.
authors.forename: K
authors.initials: K
authors.lastname: Mcpherson
mesh_terms: D001695:Biology; D001943:Breast Neoplasms; D003267:Contraception; D003276:Contraceptives, Oral; D003710:Demography; D019049:Developed Countries; D004194:Disease; D004739:England; D005060:Europe; D005193:Family Planning Services; D009369:Neoplasms; D011153:Population; D011157:Population Dynamics; D012307:Risk Factors; D013997:Time Factors; D006113:United Kingdom; D014852:Wales
chemical_list: D003276:Contraceptives, Oral
keywords: Biology; Breast Cancer--etiology; Cancer; Contraception; Contraceptive Methods--side effects; Demographic Factors; Developed Countries; Diseases; England; Europe; Family Planning; Neoplasms; Northern Europe; Oral Contraceptives--side effects; Population; Population Dynamics; Risk Factors; Time Factors; United Kingdom; Wales