[1] Frederik Meijer Heart & Vasc Inst, Spectrum Hlth, 330 Barclay NE,Suite 200, Grand Rapids, MI 49503 USA
[2] Univ Colorado, Sch Med, Aurora, CO USA
[3] Cleveland Clin, Cleveland, OH 44106 USA
[4] Med Univ South Carolina, Charleston, SC 29425 USA
[5] Washington Univ, St Louis, MO USA
[6] Tufts Med Ctr, Boston, MA USA
[7] Thomas Jefferson Univ, Jefferson Med Coll, Philadelphia, PA 19107 USA
[8] Univ South Carolina, Charlotte, NC USA
[9] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA