title: Levels of contraceptive seroids in breast milk and plasma of lactating women.
mesh_terms: D000293:Adolescent; D000328:Adult; D003276:Contraceptives, Oral / Q000097:blood*; D003280:Contraceptives, Oral, Synthetic / Q000097:blood*; D005260:Female; D006801:Humans; D007774:Lactation; D008525:Medroxyprogesterone / Q000097:blood; D008895:Milk, Human / Q000032:analysis*; D009640:Norethindrone / Q000097:blood; D009644:Norgestrel / Q000097:blood; D011247:Pregnancy
chemical_list: D003276:Contraceptives, Oral; D003280:Contraceptives, Oral, Synthetic; D009644:Norgestrel; D008525:Medroxyprogesterone; D009640:Norethindrone