Figure 1

Fluctuations of EBV antibody levels in four representative NPC patients during and after radiotherapy and/or chemotherapy. The Y axis represents the mean xMAP fluorescence intensity (FI) for each EBV parameter. X axis, time from the start of blood sampling, with the day of diagnosis, the day of treatment end and the follow-up period. R014, R103, R57 and R100 represent different NPC patients.