1. Department Physics & Medical Technology; VU University Medical Center; Amsterdam The Netherlands
2. Cardiothoracic Surgery; Medicine and Biomedical Engineering; Drexel University; Philadelphia PA
3. Department Biomedical Engineering; Rutgers University and UMDNJ-Robert Wood Johnson Medical School; Piscataway NJ
4. Cardiovascular Center Aalst; OLV Clinic; Aalst Belgium