1. Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
2. Mathematics Department, Faculty of Science, Mansoura University, Mansoura, Egypt
3. Department of Mathematics, Faculty of Science, Umm Al-Qura University, Makkah, KSA
4. Department of Medical Laboratory Technique, Faculty of Applied Medical Sciences, Taibah University, Al-Madinah Al Munawara, KSA
5. Genetics Unit-Children Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
6. Surgical Oncology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt