1. Division of Nephrology; University Hospital Zurich; Zurich; Switzerland
2. Clinic for Cardiology; Heart failure and transplantation Unit; University Hospital Zurich; Zurich; Switzerland
3. Division of Biostatistics; Institute for Social and Preventive Medicine; University Zurich; Zurich; Switzerland
4. HLA Typing Laboratory; University Hospital Zurich; Zurich; Switzerland
5. Division of Cardiac and Vascular Surgery; University Hospital Zurich; Zurich; Switzerland