title: Safety at extreme altitudes: the 1995 American North Ridge Everest Expedition.
authors: J A
authors: JA
authors: Litch
mesh_terms: D000532:Altitude Sickness / Q000517:prevention & control*; D006801:Humans; D009051:Mountaineering / Q000293:injuries*; D009390:Nepal; D014947:Wounds and Injuries / Q000517:prevention & control*