[1] MIAMI VASC INST, MIAMI, FL USA
[2] ST FRANCIS HOSP, SANTA BARBARA, CA USA
[3] YALE UNIV, NEW HAVEN, CT USA
[4] MAYO CLIN SCOTTSDALE, SCOTTSDALE, AZ USA
[5] UNIV TEXAS, HOUSTON, TX USA
[6] DUKE UNIV, DURHAM, NC USA
[7] WAYNE STATE UNIV, DETROIT, MI USA