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Yeung BY, Ng PW, Chiu TY, Tsang CW, Li FC, Chi CC, Lai JS, Tham CC, Lam DS.Yeung BY, et al. Among authors: tsang cw.Clin Exp Ophthalmol. 2005 Oct;33(5):478-82. doi: 10.1111/j.1442-9071.2005.01065.x.Clin Exp Ophthalmol. 2005.PMID: 16181272