1. Department of Experimental, Diagnostic and Specialty Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Via Massarenti n. 9, Bologna 40100, Italy
2. Mayo Clinic, Division of Cardiovascular Disease, Mayo Medical School, 200 First St. SW. Rochester, MN 55905, USA
3. Cardiovascular Department, University Catholic of Louvain, Avenue Hippocrates 10, 1200 Bruxelles, Belgium
4. University of Amiens, Cardiology, CHU Amiens-Picardie – SITE SUD, 80054 Amiens Cedex 1, France
5. Department of Cardiology, Hospital Italiano de Buenos Aires, Juan D. Péron 4190, Buenos Aires, Argentina
6. Michigan State University, Department of Statistics and Probability, 619 Red Cedar Rd C413, East Lansing, MI 48824, USA
7. University of Marseille, La Timone Hospital, Service de Cardiologie B, Boulevard Jean Moulin, 13005 Marseille, France
8. Department of Diagnostic Medicine, Clinical and Health Public, University of Modena, Via del Pozzo 71, 41124 Modena, Italy
9. Cleveland Clinic, Department of Executive Administration, Al Maryah Island, Abu Dhabi, United Arab Emirates
10. Institute for Medical Biometry and Statistics, Medical Center-University of Freiburg, Stefan-Meier-Str. 26, 79104 Freiburg, Germany