[1] Natl Inst Aging, Natl Inst Hlth, Longitudinal Studies Sect, Translat Gerontol Branch, Baltimore, MD USA
[2] Univ Cologne, Aging Clin Res, Dept Internal Med 2, Cologne, Germany
[3] Univ Cologne, Ctr Mol Med Cologne, Fac Med, Univ Hosp Cologne, Cologne, Germany
[4] Univ Cologne, Cologne Excellence Cluster Cellular Stress, Responses Aging Associated Dis CECAD, Fac Med,Univ Hosp Cologne, Cologne, Germany
[5] Tallaght Univ Hosp, Dublin, Ireland
[6] Trinity Coll Dublin, Tallaght Univ Hosp, Trinity Ctr Hlth Sci, Dublin, Ireland
[7] Galliera Hosp, Dept Geriatr Care Orthogeriatr & Rehabil, Geriatr Unit, Genoa, Italy
[8] Univ Bari, Dept Interdisciplinary Med, Bari, Italy
[9] Hannover Med Sch, Trauma Dept, Orthogeriatr Unit, Hannover, Germany
[10] Heidelberg Univ, Inst Gerontol, Heidelberg, Germany
[11] Univ Oklahoma, Dept Geriatr Med, Oklahoma City, OK USA