Peripheral plasma progesterone levels in the cow during pregnancy and parturition.
D000818:Animals; D002417:Cattle; D002849:Chromatography, Gas; D005260:Female; D007743:Labor, Obstetric; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*; D013057:Spectrum Analysis
D011374:Progesterone