[1] Univ Utah, Dept Med, Div Cardiovasc Med, Salt Lake City, UT 84112 USA
[2] Washington Univ, Sch Med, St Louis, MO USA
[3] Univ Colorado, Sch Med, Aurora, CO USA
[4] SUNY Stony Brook, Sch Med, Stony Brook Heart Inst, Stony Brook, NY 11794 USA
[5] Azusa Pacific Univ, Sch Nursing, Azusa, CA USA
[6] Univ Michigan, Ann Arbor, MI 48109 USA
[7] Spectrum Hlth, Grand Rapids, MI USA
[8] Wayne State Univ, Detroit, MI USA
[9] Campbell Univ, Coll Pharm & Hlth Sci, Dept Clin Res, Buies Creek, NC 27506 USA
[10] Univ Arizona, Sarver Heart Ctr, Tucson, AZ USA
[11] San Francisco VA Med Ctr, San Francisco, CA USA
[12] Univ Calif San Francisco, San Francisco, CA 94143 USA
[13] Thomas Jefferson Univ, Jefferson Med Coll, Dept Med, Philadelphia, PA 19107 USA
[14] Cleveland Clin, Nursing Inst, Cleveland, OH 44106 USA
[15] Cleveland Clin, Inst Heart & Vasc, Cleveland, OH 44106 USA
[16] Adv Cardiovasc Inst, Middletown, OH USA
[17] Care Grp, Indianapolis, IN USA
[18] Univ Toledo, Toledo, OH 43606 USA
[19] Georgetown Univ, Washington, DC USA
[20] Washington DC Vet Affairs Med Ctr, Washington, DC USA
[21] Univ Alberta, Edmonton, AB, Canada
[22] Temple Univ Hosp & Med Sch, Temple Heart & Vasc Inst, Philadelphia, PA 19140 USA
[23] Duke Univ, Med Ctr, Dept Med, Div Cardiol, Durham, NC 27710 USA
[24] Ohio State Univ, Columbus, OH 43210 USA
[25] NYU, Sch Med, Leon H Charney Div Cardiol, New York, NY USA
[26] Massachusetts Gen Hosp, Boston, MA 02114 USA
[27] Univ N Carolina, Eshelman Sch Pharm, Chapel Hill, NC USA
[28] Tufts Med Ctr, Boston, MA USA
[29] Harvard Univ, Brigham & Womens Hosp, Sch Med, Cardiovasc Div,Dept Med, Boston, MA 02115 USA