Volume 5, Issue 3, October 2012, Pages 561-566
Osama Mahmoud; Mohamed Mahfouz; Amr Hefny; Mohamed Attia
Volume 3, Issue 2, July 2010, Pages 111-117
Osama Mahmoud; Hesham Maged; Gamal Fawzy; Ahmed Hussein; Ramy Ghali; Khaled El-Ghoneimy