Fig. 5From: Nasopharyngeal brushing: a convenient and feasible sampling method for nucleic acid-based nasopharyngeal carcinoma researchCopy number of EBV-encoded BamHI-W in nasopharyngeal brushing and tissue samples. The copy number (copies/ng DNA) of EBV-encoded BamHI-W in nasopharyngeal brushing and tissue samples from healthy controls and NPC patients was measured by qPCR. Data were analyzed by Student’s t test. ***P < 0.001. ns no significanceBack to article page