title: Concentration of oestrogens in jugular-venous plasma of cows during the oestrus cycle.
mesh_terms: D000818:Animals; D002417:Cattle; D004958:Estradiol / Q000097:blood*; D004970:Estrone / Q000097:blood*; D004971:Estrus; D005260:Female; D007106:Immune Sera; D007601:Jugular Veins; D011247:Pregnancy; D011863:Radioimmunoassay; D013997:Time Factors
chemical_list: D007106:Immune Sera; D004970:Estrone; D004958:Estradiol