Mitochondrial DNA sequence variation is associated with free-living activity energy expenditure in the elderly. Tranah GJ, Lam ET, Katzman SM, Nalls MA, Zhao Y, Evans DS, Yokoyama JS, Pawlikowska L, Kwok PY, Mooney S, Kritchevsky S, Goodpaster BH, Newman AB, Harris TB, Manini TM, Cummings SR Biochimica et biophysica acta
