title: Male copulatory behavior triggers nightly prolactin surges resulting in successful pregnancy in rats.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D003307:Copulation; D005260:Female; D008297:Male; D011247:Pregnancy; D011270:Pregnancy, Animal; D011388:Prolactin / Q000097:blood*; D051381:Rats
chemical_list: D011388:Prolactin