1. Anatomy and Embryology Department, Faculty of Medicine Tanta University Tanta Egypt
2. Department of Medical Biochemistry, Faculty of Medicine Tanta University Tanta Egypt
3. Pharmacognosy Department, Faculty of Pharmacy Tanta University Tanta Egypt
4. Tropical Medicine & Infectious Diseases Department, Faculty of Medicine Tanta University Tanta Egypt
5. Department of Histology and Cell Biology, Faculty of Medicine Tanta University Tanta Egypt