Duodenal compression by the mesenteric artery.
D001158:Arteries; D002648:Child; D004386:Duodenum; D006801:Humans; D007223:Infant; D007235:Infant, Premature, Diseases; D007415:Intestinal Obstruction; D008638:Mesenteric Arteries / Q000002:abnormalities*
ARTERIES, MESENTERIC/abnormalities; INFANT, PREMATURE/diseases; INTESTINAL OBSTRUCTION/in infant and child