[1] Wake Forest Univ, Sch Med, Cardiol Sect, Winston Salem, NC 27157 USA
[2] Cooper Univ Hosp, Camden, NJ USA
[3] Prov St Vincent Med Ctr, Prov Heart & Vasc Inst, Portland, OR USA
[4] Baptist Hosp W, Knoxville, TN USA
[5] Lankenau Hosp, Wynnewood, PA USA
[6] Ohio Hlth Res & Innovat Inst, Columbus, OH USA
[7] ALTRU Hlth Syst, Grand Forks, ND USA