[1] Columbia Univ, Med Ctr, Cardiovasc Res Fdn, New York, NY 10022 USA
[2] Duke Univ, Med Ctr, Durham, NC 27706 USA
[3] Columbus Hosp, Milan, Italy
[4] Minneapolis Heart Inst Fdn, Minneapolis, MN USA
[5] Univ Texas, Hlth Sci Ctr, San Antonio, TX 78285 USA
[6] Scripps Clin, La Jolla, CA USA
[7] Brigham & Womens Hosp, Boston, MA 02115 USA
[8] Cardiovasc Med & Coronary Intervet, Redwood City, CA USA
[9] St Michaels Hosp, Toronto, ON M5B 1W8, Canada
[10] Shiga Med Ctr Adults, Moriyama, Japan
[11] Toyohashi Heart Ctr, Toyohashi, Aichi, Japan
[12] Kurashiki Cent Hosp, Okayama, Japan
[13] Erasmus Univ, Thoraxctr, NL-3000 DR Rotterdam, Netherlands
[14] Heart Ctr Siegburg, Siegburg, Germany
[15] Cardiac & Vasc Res Ctr No Michigan, Petoskey, MI USA
[16] Kardiol Inst, Bad Soden, Germany
[17] Swedish Med Ctr, Seattle, WA USA
[18] Inst Dante Pazzanese Cardiol, Sao Paulo, Brazil