[1] La Tour Hosp, Geneva, Switzerland
[2] Erasmus Univ, Ctr Thorax, NL-3000 DR Rotterdam, Netherlands
[3] Rush Univ, Chicago, IL 60612 USA
[4] Emory Univ, Atlanta, GA 30322 USA
[5] Virga Jesse Hosp, Hasselt, Belgium
[6] Alton Ochsner Med Fdn & Ochsner Clin, New Orleans, LA 70121 USA
[7] William Beaumont Hosp, Royal Oak, MI 48072 USA
[8] Providence Hosp, Seattle, WA USA
[9] CHUV Lausanne, Lausanne, Switzerland
[10] Montreal Heart Inst, Montreal, PQ H1T 1C8, Canada