title: [Chronic peptic ulcer complications as related to blood group substances secreted in saliva and the habit of smoking].
mesh_terms: D000017:ABO Blood-Group System / Q000032:analysis*; D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D006801:Humans; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications*; D010438:Peptic Ulcer Hemorrhage / Q000209:etiology; D010439:Peptic Ulcer Perforation / Q000209:etiology; D012463:Saliva / Q000032:analysis*; D012907:Smoking / Q000150:complications*
chemical_list: D000017:ABO Blood-Group System
vernacular_title: Ocena powikłań choroby wrzodowej w zalezności od wydzielania substancji grupowych krwi w ślinie i nałogu palenia.