A. Abutaleb - National Guard Health Affairs
E. Abed - Departments of Pathology, PO Box 22490, Riyadh, 11426, Saudi Arabia
L. Qasem - Departments of Pathology, PO Box 22490, Riyadh, 11426, Saudi Arabia
Z.A. Memish - National Guard Health Affairs
A.H. Hajeer - Departments of Pathology, PO Box 22490, Riyadh, 11426, Saudi Arabia