[1] Hosp Nacl Edgardo Rebagliati Martins, Dept Med Oncol, Lima, Peru
[2] Hosp Nacl Edgardo Rebagliati Martins, Dept Pathol, Lima, Peru
[3] Hosp Nacl Edgardo Rebagliati Martins, Dept Dermatol, Lima, Peru
[4] Hosp Nacl Edgardo Rebagliati Martins, Dept Nursing, Lima, Peru
[5] Univ Texas MD Anderson Canc Ctr, Dept Pathol, Houston, TX 77030 USA
[6] Univ Texas MD Anderson Canc Ctr, Dept Hematopathol, Houston, TX 77030 USA
[7] Harvard Med Sch, Dana Farber Canc Inst, Div Hematol Malignancies, Boston, MA 02115 USA