[1] Univ Florida, Coll Med, Dept Anat & Cell Biol, Gainesville, FL USA
[2] Baylor Coll Med, Dan L Duncan Canc Ctr, Houston, TX 77030 USA
[3] Xiamen Univ, Dept Hematol, Affiliated Hosp 1, Xiamen, Peoples R China
[4] Penn State Univ, Hershey Coll Med, Dept Pediat, Div Hematol & Oncol,Penn State Canc Inst, Hershey, PA USA