[1] Univ Ulm, Bethesda Geriatr Clin, D-89073 Ulm, Germany
[2] Univ Ulm, Geriatr Competence Ctr, D-89073 Ulm, Germany
[3] Univ Ulm, Inst Epidemiol, D-89073 Ulm, Germany
[4] Uppsala Univ, Dept Genet & Pathol, Uppsala, Sweden
[5] Beth Israel Deaconess Med Ctr, Dept Med, Boston, MA 02215 USA
[6] Krankenhaus GmbH Alb Donau Kreis, Geriatr Rehabil Clin, Ehingen, Germany