title: Plasma catecholamines in rats: daily variations in basal levels and increments in response to stress.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D002395:Catecholamines / Q000097:blood*; D002940:Circadian Rhythm; D004597:Electroshock; D004837:Epinephrine / Q000097:blood; D006801:Humans; D008297:Male; D009638:Norepinephrine / Q000097:blood; D051381:Rats; D013315:Stress, Psychological / Q000097:blood*
chemical_list: D002395:Catecholamines; D009638:Norepinephrine; D004837:Epinephrine