[1] Brown Univ, Miriam Hosp, Warren Alpert Med Sch, Div Hematol Oncol, Providence, RI 02906 USA
[2] Hosp Nacl Edgardo Rebagliati Martins, Div Oncol & Radiotherapy, Lima, Peru
[3] Univ Texas MD Anderson Canc Ctr, Dept Hematopathol, Houston, TX 77030 USA
[4] Cukurova Univ, Dept Oncol, Adana, Turkey
[5] Brown Univ, Rhode Isl Hosp, Warren Alpert Med Sch, Div Hematol Oncol, Providence, RI 02906 USA