“Dr Mahmoud Abouel Naga
– Lecturer of Endodontics..
– BDS, MSc, PhD in Endodontics.
– Faculty of oral and Dental Medicine Al-Azhar university, Cairo, Egypt.”
Mahmoud Yehia Abouel Naga - Egypt 
Dr.
“Dr Mahmoud Abouel Naga
– Lecturer of Endodontics..
– BDS, MSc, PhD in Endodontics.
– Faculty of oral and Dental Medicine Al-Azhar university, Cairo, Egypt.”