[1] University Medical Center Hamburg-Eppendorf,Department of Health Economics and Health Services Research
[2] Center for Psychosocial Medicine,Department of Primary Medical Care
[3] University Medical Center,Department of Psychiatry
[4] Hamburg-Eppendorf,Department of Psychiatry
[5] Institute of General Practice,undefined
[6] Hannover Medical School,undefined
[7] Central Institute of Mental Health,undefined
[8] Medical Faculty Mannheim/Heidelberg University,undefined
[9] Institute of General Practice,undefined
[10] Medical Faculty Heinrich-Heine-University Düsseldorf,undefined
[11] Institute of Social Medicine,undefined
[12] Occupational Health and Public Health,undefined
[13] University of Leipzig,undefined
[14] Technical University of Munich,undefined
[15] University of Bonn,undefined
[16] German Center for Neurodegenerative Diseases,undefined