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In this paper, 66 samples from the human oral mucosa tissue were measured by confocal Raman microspectroscopy. A preprocessed algorithm based on wavelet analysis was used to reduce noise and eliminate background of Raman spectra firstly. Then the integrated areas of four normalised wavenumber regions 1004, 1156, 1360 1587 and 1660 cm-1 were carried out for discrimination of the normal and malignant...
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