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Shanmuganathan VA, Casely EM, Raj D, Powell RJ, Joseph A, Amoaku WM, Dua HS.Shanmuganathan VA, et al. Among authors: amoaku wm.Br J Ophthalmol. 2005 Jun;89(6):666-9. doi: 10.1136/bjo.2004.048199.Br J Ophthalmol. 2005.PMID: 15923497Free PMC article.Clinical Trial.