1. CardioBiology, Department of Biomedicine; University of Basel and University Hospital Basel; CH-4031 Basel Switzerland
2. Division of Cardiology; University Hospital Basel; Petersgraben 4 CH-4031 Basel Switzerland
3. The Salk Institute; La Jolla CA USA
4. Department of Medicine; University of California San Diego; La Jolla CA USA
5. Medical Outpatient Department; University Hospital Basel; Basel Switzerland