[1] Univ Minnesota, Sch Med, Minneapolis, MN 55455 USA
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Univ Colorado, Hlth Sci Ctr, Denver, CO USA
[4] Mid Atlant Cardiol, Morristown, NJ USA
[5] Temple Univ Hosp, Philadelphia, PA 19140 USA
[6] Jobst Vasc Inst, Toledo, OH USA
[7] Northwestern Univ, Sch Med, Chicago, IL USA
[8] Brigham & Womens Hosp, Boston, MA 02115 USA
[9] Colorado Prevent Ctr, Denver, CO USA