[Disputable issues of the classification of gastroduodenal ulcers].
Tsimmerman
Ia S
IaS
D004386:Duodenum / Q000473:pathology; D006801:Humans; D010437:Peptic Ulcer / Q000145:classification* / Q000209:etiology / Q000473:pathology; D013270:Stomach / Q000473:pathology
Spornye voprosy klassifikatsii gastroduodenal'nykh iazv.