1. Institute for Public Health and Health Services Research, Department of Medical Informatics, Biometry and Epidemiology (IBE), Ludwig Maximilians University, Munich, Germany
2. Career Management Service, South London and Maudsley NHS Foundation Trust, Maudsley Hospital, Denmark Hill, London, UK
3. Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, WHO Collaborating Centre for Occupational Health, Clinic of the Ludwig-Maximilians University, Munich, Germany