[Gastroduodenal study by the laboratory].
D001706:Biopsy; D004194:Disease; D004378:Duodenal Diseases; D004386:Duodenum; D005750:Gastric Juice; D006801:Humans; D013272:Stomach Diseases
BIOPSY; DUODENUM/diseases; GASTRIC JUICE; STOMACH/diseases
L'exploration gastro-duodénale par le laboratoire.