1. Section of Psychosocial Oncology, Department of Medical Psychology and Medical Sociology; University Medical Center Leipzig; Leipzig Germany
2. Department of Medical Psychology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
3. Coronel Institute of Occupational Health; Academic Medical Center; Amsterdam the Netherlands
4. Department of Medical and Clinical Psychology; Uniformed Services University of the Health Sciences; Bethesda Maryland
5. Department of Preventive Medicine and Biometrics; Uniformed Services University of the Health Sciences; Bethesda Maryland