1. Department and Outpatient Clinic of Medical Psychology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Division of Psychosocial Oncology; Department of Medical Psychology and Medical Sociology; University Medical Center Leipzig; Leipzig Germany
3. Center for Interdisciplinary Addiction Research; University of Hamburg; Hamburg Germany
4. c/o Department of Psychiatry and Psychotherapy; University Medical Center Hamburg-Eppendorf; Hamburg Germany
5. Department of Hematology and Oncology, University Cancer Center Hamburg; University Medical Center Hamburg-Eppendorf; Hamburg Germany