Peripheral plasma progesterone levels in the ewe during pregnancy and parturition.
D000818:Animals; D002849:Chromatography, Gas; D005260:Female; D007743:Labor, Obstetric; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*; D012756:Sheep; D013997:Time Factors; D014316:Tritium
D014316:Tritium; D011374:Progesterone