Doctoral thesis of Physician\ Mohamed Ibrahim Abd El Hamid will be discussed in 4\6\2016 at the hall of Discussions. the Discussion committee includes ; Prof. Dr. Abd El Monaem Mohamed Mustafa , Prof. Dr. Gaber Fikry El Bagoury , Prof. Dr. Emad El Sayed Yunus , Prof. Dr. Faysal Khalil Ibrahim and Prof. Dr. Mohamed Hassan Khidr.