[1] Hertie Inst Clin Brain Res, Dept Neurodegenerat Dis, Tubingen, Germany
[2] GSF Natl Res Ctr Environm & Hlth, Inst Human Genet, Neuherberg, Germany
[3] Tech Univ Munich, Inst Med Stat & Epidemiol, D-8000 Munich, Germany
[4] Tech Univ Munich, Inst Psychiat & Psychotherapy, D-8000 Munich, Germany
[5] Med Univ Vienna, Dept Neurol, Vienna, Austria
[6] Hertie Inst Clin Brain Res, Dept Med Genet, Tubingen, Germany
[7] Univ Bonn, Dept Neurol, D-5300 Bonn, Germany
[8] GSF Natl Res Inst, Inst Epidemiol, Neuherberg, Germany
[9] Tech Univ Munich, Inst Human Genet, D-8000 Munich, Germany