Detection of EBV-DNA and SAA
EBV-DNA and SAA detection was performed by designated personnel with the same source reagents and the same detection standards. Quality control checks between laboratories were carried out regularly. Peripheral blood samples before, during, and after the first-line chemotherapy and at each follow-up point (once every 3 months) during the MT/follow-up period were collected.The PCR-fluorescent probe method was used to determine the plasma EBV-DNA levels. EBV-DNA detection was performed with 2 ml of venous blood within 1 h. The lower limit of detection was < 5.0 × 10