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Fan DS, Yu CB, Chiu TY, Wong CY, Ng JS, Pang CP, Lam DS.Fan DS, et al. Among authors: yu cb.Arch Ophthalmol. 2003 Dec;121(12):1716-21. doi: 10.1001/archopht.121.12.1716.Arch Ophthalmol. 2003.PMID: 14662591Clinical Trial.