Critical period for the occurrence of prolonged gestation in lactating pregnant rats.
D000523:Algestone / Q000097:blood; D000818:Animals; D010064:Embryo Implantation; D005260:Female; D007774:Lactation; D008297:Male; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood; D011372:Progestins / Q000097:blood*; D011555:Pseudopregnancy; D051381:Rats; D013997:Time Factors; D014886:Weaning
D011372:Progestins; D000523:Algestone; D011374:Progesterone