[Social character of gastric and duodenal ulcers].
D001699:Biometry; D004381:Duodenal Ulcer; D006801:Humans; D010437:Peptic Ulcer / Q000453:epidemiology* / Q000706:statistics & numerical data*
PEPTIC ULCER/epidemiology and statistics
Społeczny charakter choroby wrzodowej 1zoładka i dwunastnicy.