title: Letter: Potential hazards to obliteration of esophageal varices.
mesh_terms: D002404:Catheterization / Q000009:adverse effects*; D003097:Collateral Circulation; D004932:Esophageal and Gastric Varices / Q000628:therapy*; D006801:Humans; D011169:Portal Vein / Q000000981:diagnostic imaging; D011859:Radiography; D014471:Umbilical Veins