title: Plasma progesterone levels during pregnancy in the beagle bitch.
mesh_terms: D000818:Animals; D004285:Dogs / Q000502:physiology*; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*
chemical_list: D011374:Progesterone