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Lam DS, Zhao J, Chen LJ, Wang Y, Zheng C, Lin Q, Rao SK, Fan DS, Zhang M, Leung PC, Ritch R.Lam DS, et al. Among authors: ritch r.Ophthalmology. 2011 Aug;118(8):1501-11. doi: 10.1016/j.ophtha.2011.01.017. Epub 2011 Apr 3.Ophthalmology. 2011.PMID: 21459451Clinical Trial.