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El-Badry YA, Mahmoud KH.El-Badry YA, et al. Among authors: mahmoud kh.Spectrochim Acta A Mol Biomol Spectrosc. 2019 Aug 5;219:307-312. doi: 10.1016/j.saa.2019.04.050. Epub 2019 Apr 22.Spectrochim Acta A Mol Biomol Spectrosc. 2019.PMID: 31051425