[1] ASL Roma 1, S Filippo Neri Hosp, Rome, Italy
[2] CardioVasc Ctr CVC Frankfurt, Frankfurt, Germany
[3] Anglia Ruskin Univ, Chelmsford, Essex, England
[4] Univ Calif San Francisco, San Francisco, CA 94143 USA
[5] Univ Turin, Citta Salute & Sci Hosp, Turin, Italy
[6] Univ Paris 05, Hop St Anne, Paris, France
[7] Univ Hosp, Bern, Switzerland
[8] Brighton & Sussex Univ Hosp, Sussex Cardiac Ctr, Brighton, E Sussex, England
[9] Sapienza Univ, Hosp Policlin Umberto I, Rome, Italy
[10] Med Univ, Vienna, Austria
[11] Leeds Gen Infirm, Leeds, W Yorkshire, England
[12] Hop Henri Mondor, Fac Med Creteil, Creteil, France
[13] Humanitas Gavazzeni, Bergamo, Italy
[14] Ludwig Maximilians Univ Munchen, Campus Grosshadern, Munich, Germany
[15] Mil Hosp Brussels, Brussels, Belgium
[16] Heart Hosp, Massa, Italy
[17] Univ Hosp, Policlin San Donato, Milan, Italy
[18] Univ Hosp, Krakow, Poland
[19] Univ Hosp Ramon y Cjal, Madrid, Spain
[20] Univ Catania, Azienda Osped Univ Policlin Vittorio Emanuele, Catania, Italy
[21] Tech Univ Munich, Deutsch Herzzentrum Munchen, Munich, Germany
[22] Okayama Univ Hosp, Okayama, Japan
[23] Univ Colorado Hosp, Denver, CO USA
[24] Glenmark Cardiac Ctr, Mumbai, Maharashtra, India
[25] Shanghai Inst Cardiovasc Dis, Shanghai, Peoples R China
[26] Univ Penn, Philadelphia, PA 19104 USA
[27] Univ Vienna, Kinderherzzentrum, Vienna, Austria
[28] Dante Pazzanese Inst Cardiol, Sao Paulo, Brazil
[29] Nicklaus Childrens Hosp, Miami, FL USA
[30] Rigshosp, Copenhagen, Denmark
[31] Haukeland Hosp, Bergen, Norway
[32] Sapienza Univ Rome, Latina, Italy
[33] IRCCS Neuromed, Dept AngioCardioNeurol, Pozzilli, Italy