Volume 20, Issue 1, March 2010, Pages 134-141
S.A. Nassif; Hanan M. Ibrahim; Zeinab M. Souror; Arwa H. Elnaggar; Hayam Farouk; A. B. Abd Elrazek; M. M. Yousef; Elham.A. Elebiary
Volume 15, Issue 2, March 2005, Pages 134-138
M. M. Amer; S. A. Nassif