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Saw SM, Chan YH, Wong WL, Shankar A, Sandar M, Aung T, Tan DT, Mitchell P, Wong TY.Saw SM, et al.Ophthalmology. 2008 Oct;115(10):1713-9. doi: 10.1016/j.ophtha.2008.03.016. Epub 2008 May 16.Ophthalmology. 2008.PMID: 18486221
Saw SM, Hong CY, Chia KS, Stone RA, Tan D.Saw SM, et al.Lancet. 2001 Feb 3;357(9253):390. doi: 10.1016/S0140-6736(05)71520-8.Lancet. 2001.PMID: 11211020No abstract available.