[1] Univ Michigan, Div Cardiovasc Med, Ann Arbor, MI 48109 USA
[2] Univ Arizona, Sarver Heart Ctr, Tucson, AZ USA
[3] Cleveland Clin, Nursing Inst, Cleveland, OH 44106 USA
[4] Cleveland Clin, Inst Heart & Vasc, Cleveland, OH 44106 USA
[5] Adv Cardiovasc Inst, Middletown, OH USA
[6] Washington Univ, Sch Med, St Louis, MO USA
[7] Campbell Univ, Coll Pharm & Hlth Sci, Dept Clin Res, Buies Creek, NC 27506 USA
[8] St Vincent Heart Ctr, Indianapolis, IN USA
[9] Azusa Pacific Univ, Sch Nursing, Azusa, CA USA
[10] Univ Colorado, Sch Med, Aurora, CO USA
[11] Univ Toledo, Toledo, OH 43606 USA
[12] Georgetown Univ, Washington, DC USA
[13] Washington DC Vet Affairs Med Ctr, Washington, DC USA
[14] Univ Alberta, Edmonton, AB, Canada
[15] Spectrum Hlth, Grand Rapids, MI USA
[16] Temple Univ, Sch Med, Temple Heart & Vasc Inst, Philadelphia, PA 19122 USA
[17] Univ Utah, Salt Lake City, UT USA
[18] Duke Univ, Med Ctr, Dept Med, Div Cardiol, Durham, NC 27710 USA
[19] Ohio State Univ, Columbus, OH 43210 USA
[20] NYU, Sch Med, Leon H Charney Div Cardiol, New York, NY USA
[21] Massachusetts Gen Hosp, Boston, MA 02114 USA
[22] Univ N Carolina, Eshelman Sch Pharm, Chapel Hill, NC USA
[23] Tufts Med Ctr, Boston, MA USA
[24] Thomas Jefferson Univ, Jefferson Med Coll, Dept Med, Philadelphia, PA 19107 USA
[25] Harvard Univ, Brigham & Womens Hosp, Sch Med, Div Cardiovasc, Boston, MA 02115 USA