NOTCH1 and neoplasm: Among the total 2,216 somatic variants identified in tumour suppressor genes (TSGs), we compared the high frequency mutation genes reported in OSCC in Catalogue of Somatic Mutations in Cancer (COSMIC) database with research samples, and found that TP53 (85.7%), NOTCH1 (85.7%), and FAT1 (85.7%) showed higher rate of mutation.