Altitude, life expectancy and mortality from ischaemic heart disease, stroke, COPD and cancers: national population-based analysis of US counties. (Pubmed Abstract) Authors Ezzati M, Horwitz ME, Thomas DS, Friedman AB, Roach R, Clark T, Murray CJ, Honigman B Abbreviation J Epidemiol Community Health Volume 66 Issue 7 Publication Date 2011-03-15