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Wang L, Wang N, Koch DD.Wang L, et al. Among authors: koch dd.J Cataract Refract Surg. 2003 May;29(5):970-9. doi: 10.1016/s0886-3350(02)01967-3.J Cataract Refract Surg. 2003.PMID: 12781285
Jackson DW, Wang L, Koch DD.Jackson DW, et al. Among authors: koch dd.Cornea. 2003 Aug;22(6):504-7. doi: 10.1097/00003226-200308000-00003.Cornea. 2003.PMID: 12883340