title: Circulating hormonal levels during prolonged lactational amenorrhea.
mesh_terms: D000568:Amenorrhea / Q000097:blood*; D004958:Estradiol / Q000097:blood*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007774:Lactation; D007986:Luteinizing Hormone / Q000097:blood*; D049590:Postpartum Period; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D011388:Prolactin / Q000097:blood*; D013739:Testosterone / Q000097:blood
chemical_list: D013739:Testosterone; D011374:Progesterone; D004958:Estradiol; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone