title: Letter: The etiology and prevention of ovarian cancer.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004967:Estrogens / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000209:etiology* / Q000517:prevention & control
chemical_list: D004967:Estrogens