Effects of variations in environmental lighting on pituitary and plasma prolactin levels in the rat.
D000818:Animals; D002940:Circadian Rhythm; D003624:Darkness; D008027:Light; D008297:Male; D008550:Melatonin / Q000378:metabolism; D010870:Pineal Gland / Q000502:physiology*; D010902:Pituitary Gland / Q000502:physiology*; D011388:Prolactin / Q000096:biosynthesis* / Q000378:metabolism; D051381:Rats
D011388:Prolactin; D008550:Melatonin