[Complicated gastric and duodenal ulcers in childhood and adolescence].
D004381:Duodenal Ulcer; D006801:Humans; D010437:Peptic Ulcer / Q000150:complications*
PEPTIC ULCER/complications
Oslozhnennaia iazvennaia bolezn' zheludka i dvenadtsatiperstnoi kishki v detskom i iunosheskom vozraste.