Li, Z. et al. 2021. Therapeutic Efficacy of Sorafenib in Patients with Hepatocellular Carcinoma Recurrence After Liver Transplantation: A Systematic Review and Meta-Analysis. Turkish Journal of Gastroenterology. 32, 1 (Jan. 2021), 30–41. DOI:https://doi.org/10.5152/tjg.2020.19877.