Ksenia Smirnova et al. 2021. Determination of EBV Serology and Plasma EBV DNA Load as a Combined Tool for Nasopharyngeal Carcinoma (NPC) Diagnosis. Issues and Development in Health Research Vol. 1. (Jul. 2021), 38–53. DOI:https://doi.org/10.9734/bpi/idhr/v1/10560D.