Tokmak, S. et al. 2021. What Is the Risk of Reactivation in Patients with Resolved and Past HBV Infection During Immunosuppressive Therapy If HBV-DNA Negative before Treatment?. Turkish Journal of Gastroenterology. 32, 3 (Jan. 2021), 294–301. DOI:https://doi.org/10.5152/tjg.2021.201131.