title: Activity-stress ulcer in the rat: frequency and chronicity.
mesh_terms: D000818:Animals; D001835:Body Weight; D003289:Convalescence; D004195:Disease Models, Animal; D005247:Feeding Behavior; D006801:Humans; D008297:Male; D009043:Motor Activity; D051381:Rats; D013276:Stomach Ulcer / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D013315:Stress, Psychological; D013997:Time Factors