Yalçın Kehribar, D., M. Okuyucu, M. Özgen, Y. B. Ketenci, T. Ayyıldız, and B. Yıldırım. “Impact of Tumor Necrosis Factor Alpha Antagonist Treatment on Antibody Titer of Hepatitis B Surface Antigen”. Journal of Surgery and Medicine, vol. 4, no. 8, Aug. 2020, pp. 678-81, doi:10.28982/josam.777871.