[1] Univ Toledo, Med Ctr, Div Cardiovasc Med, Toledo, OH 43614 USA
[2] Forrest Gen Hosp, Div Med, Hattiesburg, MS USA
[3] Rapides Reg Med Ctr, Alexandria, LA USA
[4] Baylor Coll Med, Sect Intervent Cardiol, Houston, TX USA
[5] Baylor Coll Med, Michael E DeBakey Vet Affairs Med Ctr & Sect Card, Dept Med, Houston, TX USA