[1] Mayo Clin, Alix Sch Med, Rochester, MN USA
[2] Mayo Clin, Gonda Vasc Ctr, Rochester, MN USA
[3] Mayo Clin, Dept Cardiovasc Dis, Div Vasc Med, Rochester, MN USA
[4] Mayo Clin, Div Hematol, Dept Med, Rochester, MN USA
[5] Mayo Clin, Rochester, MN USA
[6] Mayo Clin, Jacksonville, FL USA