Table 1. Discrimination results obtained by Raman spectroscopy of different types of tissues using the classification model based on PCA-LDA algorithms with leave-one-out cross validation method. Actual: Pathological diagnosis results. Predict: Raman spectra combined with the classification model obtained the diagnostic results.

Actual\Predict	Pre-MWA group	Post-MWA group	Healthy group
Pre-MWA group	36	4	0
Post-MWA group	8	32	0
Healthy group	1	0	24