[Russian priority in development of knowledge about etiology and pathogenesis of gastric and duodenal ulcers].
D A
DA
Balalykin
D004381:Duodenal Ulcer / Q000209:etiology / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012426:Russia; D013276:Stomach Ulcer / Q000209:etiology / Q000266:history*