Breast cancer and reproductive history of women in South Wales.
D000328:Adult; D000368:Aged; D001942:Breast Feeding; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007774:Lactation; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D012959:Socioeconomic Factors; D014852:Wales