Rapamycin, but not resveratrol or simvastatin, extends life span of genetically heterogeneous mice. - Miller RA; Harrison DE; Astle CM; Baur JA; Boyd AR; de Cabo R; Fernandez E; Flurkey K; Javors MA; Nelson JF; Orihuela CJ; Pletcher S; et al. (Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 2011)