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Dhalla AH, Nankivil D, Bustamante T, Kuo A, Izatt JA.Dhalla AH, et al.Opt Lett. 2012 Jun 1;37(11):1883-5. doi: 10.1364/OL.37.001883.Opt Lett. 2012.PMID: 22660061Free PMC article.