Reply to: “In response to identification of a quadruple mutation that confers tenofovir resistance in chronic hepatitis B patients.”

In response to identification of a quadruple mutation that confers tenofovir resistance in chronic hepatitis B patientsJournal of HepatologyVol. 71Issue 6PreviewPark et al. recently reported a quadruple mutation that conferred resistance to tenofovir in South Korean patients with chronic hepatitis B virus (HBV) infection.1 In 2 patients who experienced viral breakthrough during treatment, the CYEI mutation within the HBV reverse transcriptase...