title: Learned aversions in rats fed a tryptophan-free diet.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D002755:Choice Behavior / Q000502:physiology; D004435:Eating; D008297:Male; D009751:Nutritional Requirements; D051381:Rats; D011919:Rats, Inbred Strains; D013649:Taste / Q000502:physiology*; D014364:Tryptophan / Q000172:deficiency* / Q000502:physiology
chemical_list: D014364:Tryptophan