[STOMACH ULCER AND DUODENAL ULCER, A SINGLE DISEASE OR 2 DIFFERENT DISEASES?].
D004381:Duodenal Ulcer; D006801:Humans; D013276:Stomach Ulcer
DUODENAL ULCER; STOMACH ULCER
EDINAIA LI BOLEZN' IAZVA ZHELUDKA I DVENADTSATIPERSTNO I KISHKI ILI 'ETO DVA RAZNYKH ZABOLEVANIIA?