Hung, Pei-Yin Portal hypertension and duodenal ulcer in children. [electronic resource] - Journal of pediatric gastroenterology and nutrition Aug 2004 - 158-60 p. digital Publication Type: Journal Article ISSN: 0277-2116 Standard No.: 10.1097/00005176-200408000-00006 doi Subjects--Topical Terms: AdolescentCase-Control StudiesChildChild, PreschoolDuodenal Ulcer--epidemiologyEndoscopy, GastrointestinalEsophageal and Gastric VaricesFemaleGastrins--bloodHelicobacter Infections--epidemiologyHelicobacter pyloriHumansHypertension, Portal--complicationsInfantMalePrevalence