title: West goes up--to Sierras, then Everest.
mesh_terms: D000531:Altitude; D000532:Altitude Sickness / Q000503:physiopathology / Q000517:prevention & control; D002320:Cardiovascular Physiological Phenomena; D006439:Hemodynamics; D006801:Humans; D009051:Mountaineering; D009390:Nepal