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Kaviyarasu K, Raja A, Devarajan PA.Kaviyarasu K, et al.Spectrochim Acta A Mol Biomol Spectrosc. 2013 Oct;114:586-91. doi: 10.1016/j.saa.2013.04.126. Epub 2013 May 21.Spectrochim Acta A Mol Biomol Spectrosc. 2013.PMID: 23800777