1. Amsterdam University Medical Centers,Dept. Radiology & Nuclear Medicine,Amsterdam,The Netherlands
2. Cardiovascular Center,Aalst,Belgium
3. Universidad de Valparaiso,Dept. of Medicine,Chile
4. Emergency Institute for Cardiovascular Diseases, University for Medicine,Bucharest,Romania
5. Institut Mutualiste Montsouris,Paris,France
6. Drexel University, College of Medicine,Dept. Emergency Medicine,Philadelphia,PA,USA