kb.psu.ac.thkb.psu.ac.th/psukb/bitstream/2553/4715/5/119711.pdfThe application of toluidine blue...
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kb.psu.ac.thkb.psu.ac.th/psukb/bitstream/2553/4715/5/119711.pdfThe application of toluidine blue staining in oral precancer and cancer Abstract Toluidine blue, a vital dye, has been