Pages 23-30
Ahmad Mohammad Hassanin; M M Tohamy; Hamdy A Shaaban; M A Ali
Pages 43-55
Sameh Abdallah Hendy; A. H. Gamal El Din; Ezzat Ahmed Abdel Fatah; Wafaa M. Salama; Hosam El-Din Mostafa; Rania M. Azab; Sameh S. Yacoub