[1] Scripps Clin, La Jolla, CA 92037 USA
[2] NYU, Med Ctr, New York, NY 10016 USA
[3] Northwestern Univ, Sch Med, Chicago, IL USA
[4] Moses H Cone Mem Hosp, Greensboro, NC USA
[5] Cardiovasc Res Inst, Washington, DC USA
[6] St Vincent Hosp, Indianapolis, IN USA
[7] St Francis Hosp, Blue Island, IL USA
[8] Stanford Univ, Stanford, CA 94305 USA
[9] Univ Rochester, Strong Mem Hosp, Rochester, NY 14642 USA
[10] Prairie CV Consultants, Springfield, IL USA
[11] Methodist Hosp, Memphis, TN USA
[12] New York Med Ctr Queens, New York, NY USA