Letter: Pressure in Sengstaken tubes.
D001795:Blood Pressure Determination / Q000295:instrumentation; D002404:Catheterization / Q000295:instrumentation; D002496:Central Venous Pressure; D004932:Esophageal and Gastric Varices / Q000628:therapy*; D006471:Gastrointestinal Hemorrhage / Q000628:therapy*; D006801:Humans; D007440:Intubation / Q000295:instrumentation*; D008365:Manometry / Q000295:instrumentation; D011312:Pressure