Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Duke University Hospital, Durham, North Carolina, United States
Ahmed S.Shehab, Alexandria, Egypt
Alexandria University, Alexandria, Egypt
Sherine El-Sherif, Alexandria, Egypt
Alexandria University, Alexandria, Egypt
Faculty of Dentistry, Alexandria University, Egypt, Alexandria, Egypt
Faculty of Dentistry, Alexandria University, Egypt, Alexandria, Egypt
Alexandria university, Faculty of medicine, Alexandria, Egypt
Caritas, Alexandria, Egypt