[1] Rochester Gen Hosp, Dept Hematol Oncol, Rochester, NY 14621 USA
[2] Mayo Clin, Comprehens Hemophilia Ctr, Div Hematopathol, Rochester, MN USA
[3] Mayo Clin, Special Coagulat Lab, Rochester, MN USA
[4] Univ Rochester, Sch Med, Mary M Gooley Hemophilia Ctr, Rochester, NY USA
[5] Mary M Gooley Hemophilia Ctr, Dept Hematol Oncol, Rochester, NY USA