Mortality on Mount Everest, 1921-2006: descriptive study.
Firth PG, Zheng H, Windsor JS, Sutherland AI, Imray CH, Moore GW, Semple JL, Roach RC, Salisbury RA.
Firth PG, et al. Among authors: semple jl.
BMJ. 2008 Dec 11;337:a2654. doi: 10.1136/bmj.a2654.
BMJ. 2008.
PMID: 19074222
Free PMC article.