title: Progesterone concentrations--physiologic or pharmacologic?
authors.forename: D V
authors.initials: DV
authors.lastname: Spicer
authors.forename: G
authors.initials: G
authors.lastname: Ursin
authors.forename: M C
authors.initials: MC
authors.lastname: Pike
mesh_terms: D000287:Administration, Topical; D001940:Breast / Q000187:drug effects / Q000378:metabolism; D004958:Estradiol / Q000008:administration & dosage / Q000378:metabolism; D005260:Female; D006801:Humans; D008183:Luteal Phase; D011374:Progesterone / Q000008:administration & dosage / Q000378:metabolism*
chemical_list: D011374:Progesterone; D004958:Estradiol