Al Othaimeen A., Ezzat A., Mohamed G., Muammar T. and Al Madouj A.
Eastern Mediterranean Health Journal 10 ( 6 ): 879 - 886 , 2004
Elkum N., Fahim M., Shoukri M. and Al Madouj A.
Eastern Mediterranean Health Journal 15 ( 2 ): 416 - 424 , 2009