SIMULTANEOUSLY BOTH EXPRESSION OF LMP-1 AND METHYLATION OF E-CADHERIN: MOLECULAR BIOMARKER IN STAGE IV OF NASOPHARYNGEAL CARCINOMA PATIENTS. - T. D., Lao; P. K., Truong; H. H., Thieu; D. H., Nguyen; M. T., Nguyen; T. A. H., Le (Balkan Journal of Medical Genetics, 2021)