title: [Clinical study of the association of chronic respiratory insufficiency with gastroduodenal ulcer].
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications* / Q000209:etiology; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000150:complications* / Q000175:diagnosis
vernacular_title: Investigación clínica de la asociación de la insuficiencia respiratoria crónica con la úlcera gastroduodenal.