The isolation of progesterone.
D000818:Animals; D002621:Chemistry; D003338:Corpus Luteum / Q000378:metabolism; D004704:Endocrinology / Q000266:history*; D005260:Female; D049673:History, 20th Century; D011374:Progesterone / Q000302:isolation & purification*; D011817:Rabbits; D013552:Swine
D011374:Progesterone