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M A, El-Asrar A, Abouammoh M, Al-Mezaine HS.M A, et al.Middle East Afr J Ophthalmol. 2009 Oct;16(4):188-201. doi: 10.4103/0974-9233.58421.Middle East Afr J Ophthalmol. 2009.PMID: 20404986Free PMC article.