title: Peripheral plasma progesterone concentrations in sheep during the oestrous cycle.
mesh_terms: D000818:Animals; D001798:Blood Proteins; D002940:Circadian Rhythm; D003338:Corpus Luteum / Q000502:physiology; D003624:Darkness; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D011485:Protein Binding; D012756:Sheep / Q000502:physiology*
chemical_list: D001798:Blood Proteins; D011374:Progesterone