[1] Prairie Vasc Res Inc, Regina, SK, Canada
[2] Minneapolis Heart Inst, Minneapolis, MN USA
[3] Minneapolis Heart Inst Fdn, Minneapolis, MN USA
[4] Northside Hosp, Atlanta, GA USA
[5] Ochsner Clin Fdn, New Orleans, LA USA
[6] Montefiore Med Ctr, Bronx, NY USA
[7] Gundersen Hlth Syst, La Crosse, WI USA
[8] Scripps Mercy, San Diego, CA USA
[9] Detroit Med Ctr, Detroit, MI USA
[10] Heart Ctr Northeast Georgia, Duluth, GA USA
[11] Northwestern Univ, Northwestern Med, Chicago, IL 60611 USA
[12] Univ Arizona, Tucson, AZ USA
[13] Shore Cardiac Inst BHMG, Toms River, NJ USA
[14] Cook Cty Hlth Syst, Chicago, IL USA
[15] MedStar Washington Hosp Ctr, Washington, DC USA
[16] New York Presbyterian Queens, Flushing, NY USA
[17] SIU Sch Med, Springfield, IL USA
[18] Sunnybrook Hlth Sci Ctr, Toronto, ON, Canada
[19] Harvard Med Sch, Massachusetts Gen Hosp, Boston, MA 02115 USA
[20] Royal Univ Hosp, Saskatoon, SK, Canada
[21] Christ Hosp, Lindner Ctr Res & Educ, Cincinnati, OH 45219 USA