title: The effect of corpora lutea induced during pregnancy on the length of gestation in the pig.
mesh_terms: D000818:Animals; D002369:Castration; D003338:Corpus Luteum / Q000502:physiology*; D003340:Corpus Luteum Maintenance; D004967:Estrogens / Q000097:blood; D005260:Female; D005313:Fetal Death / Q000503:physiopathology; D005865:Gestational Age; D003341:Luteolysis; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood
chemical_list: D004967:Estrogens; D011374:Progesterone