1. Department of Psychiatry and Psychotherapy; University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Department of Neurology and Epileptology; Protestant Hospital Hamburg-Alsterdorf; Hamburg Germany
3. Center for Molecular Neurobiology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
4. Department of Medical Biometry and Epidemiology; University Medical Center Hamburg-Eppendorf; Hamburg Germany