[1] Guys & St Thomas Hosp, Cardiothorac Ctr, London SE1 7EH, England
[2] DHU Fire, Bichat Hosp, AP HP, Cardiol Dept, Paris, France
[3] Paris Diderot Univ, Paris, France
[4] Univ Vienna, Vienna Gen Hosp, Vienna, Austria
[5] Univ Hosp Ramon & Cajal, Cibercv, Madrid, Spain
[6] CHU Sart Tilman, Heart Valve Clin, Dept Cardiol, Liege, Belgium
[7] Univ Liege Hosp, GIGA Cardiovasc Sci, Liege, Belgium
[8] Lille Univ Hosp, Lille, France
[9] Deutsch Herzzentrum Berlin, Berlin, Germany
[10] Erasmus Univ, Rotterdam, Netherlands
[11] Laval Univ, Dept Med, Quebec City, PQ, Canada
[12] Massachusetts Gen Hosp, Corrigan Minehan Heart Ctr, Boston, MA 02114 USA
[13] Univ Hosp Muenster, Dept Cardiovasc Med, Div Adult Congenital & Valvular Heart Dis, Munster, Germany
[14] Leiden Univ, Med Ctr, Leiden, Netherlands
[15] Anthea Hosp, Grp Villa Maria Care & Res, Bari, Italy