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Young AL, Leung AT, Cheng LL, Law RW, Wong AK, Lam DS.Young AL, et al. Among authors: cheng ll.Ophthalmology. 2004 Mar;111(3):590-5. doi: 10.1016/j.ophtha.2003.06.003.Ophthalmology. 2004.PMID: 15019341
Cheng LL, Young AL, Wong AK, Law RW, Lam DS.Cheng LL, et al.Cornea. 2005 Jul;24(5):599-602. doi: 10.1097/01.ico.0000151551.41459.31.Cornea. 2005.PMID: 15968168
Young AL, Jhanji V, Fan AH, Tam PM, Cheng LL, Rao SK.Young AL, et al. Among authors: cheng ll.Optom Vis Sci. 2012 Oct;89(10):e8-11. doi: 10.1097/OPX.0b013e3182690e8b.Optom Vis Sci. 2012.PMID: 22960613