Ahmed M. Aboul-Enein, Farouk K. El Baz, Gamal S. El-Baroty, A.M. Youssef and Hanaa H. Abd El-Baky
Journal of Medical Sciences 3 ( 1 ): 87 - 98 , 2003
A.A. Fathi, M.A. Al-Fredan and A.M. Youssef
Research Journal of Environmental Sciences 3 ( 5 ): 504 - 513 , 2009