title: Massive variceal hemorrhage secondary to presinusoidal portal hypertension due to arsenic poisoning.
mesh_terms: D020261:Arsenic Poisoning; D001249:Asthma / Q000188:drug therapy; D004932:Esophageal and Gastric Varices / Q000139:chemically induced*; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced; D006801:Humans; D006975:Hypertension, Portal / Q000139:chemically induced*; D008297:Male; D008875:Middle Aged; D004366:Nonprescription Drugs / Q000009:adverse effects*; D011041:Poisoning / Q000150:complications
chemical_list: D004366:Nonprescription Drugs