title: Proceedings: Variations in peripheral blood concentrations of progesterone and total free oestrogens in the non-pregnant bitch.
mesh_terms: D000818:Animals; D004285:Dogs / Q000502:physiology*; D004967:Estrogens / Q000097:blood*; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D013997:Time Factors
chemical_list: D004967:Estrogens; D011374:Progesterone