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Al-Mustafa MM, Abu-Halaweh SA, Aloweidi AS, Murshidi MM, Ammari BA, Awwad ZM, Al-Edwan GM, Ramsay MA.Al-Mustafa MM, et al. Among authors: awwad zm.Saudi Med J. 2009 Mar;30(3):365-70.Saudi Med J. 2009.PMID: 19271064Clinical Trial.