1. Amsterdam University Medical Centers,Dept. Radiology & Nuclear Medicine,Amsterdam,The Netherlands
2. Universidad de Valparaiso,Dept. of Medicine and the Cardiovascular Physiology Laboratory,Chile
3. OLV Clinic,Cardiovascular Center,Aalst,Belgium
4. Rutgers Univ.,Dept. of Biomedical Engineering,Piscataway,NJ,USA
5. Drexel University College of Medicine,Dept. Emergency Medicine,Philadelphia,PA,USA