title: Behavioral threshold and rhodopsin content as a function of vitamin A deprivation in the rat.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D008297:Male; D051381:Rats; D012160:Retina / Q000032:analysis; D012168:Retinal Pigments / Q000032:analysis*; D012201:Reward; D012243:Rhodopsin / Q000032:analysis*; D013997:Time Factors; D014785:Vision, Ocular; D014802:Vitamin A Deficiency / Q000503:physiopathology*
chemical_list: D012168:Retinal Pigments; D012243:Rhodopsin