1. Clinical Pathology Department, Hematology Unit, Mansoura Medical School, Mansoura University, Mansoura, Egypt
2. Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
3. Clinical Pathology, international Mansoura hospital, Mansoura, Egypt
4. Department of Pathology and Laboratory Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
5. College of Medicine, King Khalid University, KSA and Clinical Pathology Department, Faculty of Medicine, Zagazig University, Egypt