[1] Univ Chicago Med, Neurosurg Sect, Neurovasc Surg Program, 5841 S Maryland Ave, Chicago, IL 60637 USA
[2] Recurs Pharmaceut, Salt Lake City, UT 84108 USA
[3] Univ Utah, Sch Med, Div Cardiol, 30 N 1900 E, Salt Lake City, UT 84132 USA
[4] Univ Utah, Sch Med, Dept Med, 30 N 1900 E, Salt Lake City, UT 84132 USA
[5] Univ Chicago Med, Cardiol Sect, 5841 S Maryland Ave, Chicago, IL 60637 USA