[1] Duke Clin Rsch Inst, Durham, NC USA
[2] Cleveland Clin, Cleveland, OH 44106 USA
[3] Univ Alberta, Edmonton, AB, Canada
[4] Univ Bergen, Bergen, Norway
[5] Johnson & Johnson, Raritan, NJ USA
[6] Univ Pierre Marie Curie, Paris, France
[7] Univ Calif San Francisco, San Francisco, CA 94143 USA
[8] Univ Glasgow, Western Infirm, Glasgow G11 6NT, Lanark, Scotland
[9] Meilahti Hosp, Helsinki, Finland
[10] Montreal Heart Inst, Montreal, PQ H1T 1C8, Canada
[11] Sahlgrens Acad, Gothenburg, Sweden
[12] Duke Translat Med Inst, Durham, NC USA