Moosa K., Abdul Wahab A.W., Al Sayyad J. and Baig B.Z.
Eastern Mediterranean Health Journal 7 ( 4 ): 609 - 616 , 2001
Al Hamdan N., Ravichandran K., Al Sayyad J., Al Lawati J., Khazal Z., Al Khateeb F., Abdulwahab A. and Al Asfour A.
Eastern Mediterranean Health Journal 15 ( 3 ): 600 - 611 , 2009