1. Department of Cardiology and Pneumology; Göttingen University Medical Centre; Göttingen Germany
2. Health Behaviour Research Centre; University College London; London UK
3. Department of Nephrology and Rheumatology; Göttingen University Medical Centre; Göttingen Germany
4. Department of Haematology and Oncology; Göttingen University Medical Centre; Göttingen Germany
5. Department of Legal Medicine; University Medical Centre Hamburg-Eppendorf; Hamburg Germany