title: Immobilization stress not necessarily fatal for aged rats.
mesh_terms: D000375:Aging; D000818:Animals; D006339:Heart Rate; D007103:Immobilization; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012149:Restraint, Physical; D013315:Stress, Psychological / Q000503:physiopathology*