1. Interuniversity Cardiology Institute of The Netherlands; Utrecht The Netherlands
2. Division of Heart and Lungs, Department of Medical Physiology; University Medical Center Utrecht; Yalelaan 50 3584 CM Utrecht The Netherlands
3. Division Laboratory, Department of Pathology; University Medical Center Utrecht; Utrecht The Netherlands
4. Department of Cardiology and Angiology; Hospital of the University of Muenster; Muenster Germany
5. Division of Heart and Lungs, Department of Cardiology; University Medical Center Utrecht; Utrecht The Netherlands
6. Heart Failure Research Center; Academic Medical Center; Amsterdam The Netherlands
7. Department of Pharmacology and Pharmacotherapy; University of Szeged; Szeged Hungary
8. Division for Cardiovascular Pharmacology; Hungarian Academy of Sciences; Szeged Hungary