[1] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[2] Univ Barcelona, Hosp Clin, E-08007 Barcelona, Spain
[3] Mayo Clin & Mayo Fdn, Rochester, MN 55905 USA
[4] Arrhythmia & EP Ctr, Milan, Italy
[5] Vet Gen Hosp, Taipei, Taiwan
[6] Univ Hosp Maastricht, Maastricht, Netherlands
[7] Washington Univ, Sch Med, St Louis, MO 63130 USA
[8] St Marys Hosp, London, England
[9] William Beaumont Hosp, Royal Oak, MI 48072 USA
[10] Univ Bordeaux 1, Hop Cardiol, F-33405 Talence, France
[11] Tsuchiura Kyodo Gen Hosp, Tsuchiura, Ibaraki, Japan
[12] Univ Oklahoma, Hlth Sci Ctr, Norman, OK 73019 USA
[13] Univ Bordeaux 1, Hop Cardiol, F-33405 Talence, France
[14] Clin Hirslanden Zurich, Zurich, Switzerland
[15] Allgemeines Krankenhaus St Georg, Hamburg, Germany
[16] Washington Univ, Sch Med, St Louis, MO 63130 USA
[17] Hosp Univ Penn, Philadelphia, PA 19104 USA
[18] Feinberg Sch Med, Chicago, IL USA
[19] Univ Barcelona, Hosp Clin, E-08007 Barcelona, Spain
[20] Univ Michigan Hosp, Ann Arbor, MI 48109 USA
[21] Cleveland Clin Fdn, Cleveland, OH 44195 USA
[22] Hosp San Raffaele, I-20132 Milan, Italy
[23] Care Grp LLC, Indianapolis, IN USA
[24] Umberto I Hosp, Venice, Italy
[25] Massachusetts Gen Hosp, Boston, MA 02114 USA
[26] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90024 USA