[1] Heidelberg Univ, Geriatr Ctr, AGAPLESION Bethanien Hosp, Dept Geriatr Res, Rohrbacher Str 149, D-69126 Heidelberg, Germany
[2] Heidelberg Univ, Network Aging Res, Bergheimer St 20, D-69115 Heidelberg, Germany
[3] Heidelberg Univ, Inst Med Biometry & Informat, Neuenheimer Feld 1303, D-69120 Heidelberg, Germany