[Clinical diagnosis of diseases of the gastroduodenal system in young persons].
D000328:Adult; D004378:Duodenal Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D013272:Stomach Diseases / Q000175:diagnosis*
O klinicheskoĭ diagnostike zabolevaniĭ gastroduodenal'noĭ sistemy u lits molodogo vozrasta.