A comparison of the chemical tests for oestrogens used in equine pregnancy diagnosis.
D000818:Animals; D004967:Estrogens / Q000652:urine*; D005260:Female; D005865:Gestational Age; D006736:Horses; D008722:Methods; D011247:Pregnancy; D011258:Pregnancy Tests / Q000662:veterinary*; D011270:Pregnancy, Animal
D004967:Estrogens