1. Department of Interventional Cardiology; Jagiellonian University Medical College; Krakow Poland
2. Columbia University Medical Center and the Cardiovascular Research Foundation; New York
3. Charite University Medicine Campus Benjamin Franklin; Berlin Germany
4. LeBauer Cardiovascular Research Foundation/Moses Cone Hospital; Greensboro North Carolina
5. Cardiology Department; Rabin Medical Center; Petach Tikva Israel
6. Yale University School of Medicine; New Haven Connecticut