[1] Mayo Clin, Alix Sch Med, Rochester, MN USA
[2] Mayo Clin, Div Hematol, Dept Med, Rochester, MN USA
[3] Mayo Clin, Div Hematol, Rochester, MN USA
[4] Mayo Clin, Div Pediat Hematol, Rochester, MN USA
[5] Mayo Clin, Dept Lab Med & Pathol, Rochester, MN USA
[6] Mayo Clin, Div Hematopathol, Dept Lab Med & Pathol, Rochester, MN USA