[1] King Saud Univ, King Saud Univ Med City, Coll Med, Div Hematol Oncol,Dept Med, Riyadh, Saudi Arabia
[2] King Saud Univ, King Saud Univ Med City, Coll Med, Hematol Oncol,Div Hematol Oncol, Riyadh, Saudi Arabia
[3] Ain Shams Univ, Fac Med, Dept Adult Hematol Internal Med, Cairo, Egypt
[4] King Saud Univ, King Saud Univ Med City, Coll Med, Hematopathol Unit,Dept Pathol, Riyadh, Saudi Arabia