Circulating steroids.
D000818:Animals; D004967:Estrogens / Q000097:blood*; D011374:Progesterone / Q000097:blood*; D012871:Skin Diseases / Q000097:blood / Q000662:veterinary*; D013739:Testosterone / Q000097:blood*
D004967:Estrogens; D013739:Testosterone; D011374:Progesterone