1. Institute of Sports Medicine and Science, Rome, Italy (S.C., F.M., J.C., A.P.).
2. Hoag Hospital, Newport Beach, CA (N.G.P.).
3. Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Italy (D.C.).
4. Department of Clinical and Molecular Medicine, Sapienza University of Rome, Italy (C.A.).