Age at first birth and risk of epithelial ovarian cancer.
D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000209:etiology*; D005260:Female; D006801:Humans; D008423:Maternal Age; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000209:etiology*; D010298:Parity; D012306:Risk