Sivri, S., and M. Çelik. “Effect of Anti-TNFα Treatment on Tp-E Interval and Tp-e/QT Ratio in Patients With Ankylosing Spondylitis: A Case-Control Study”. Journal of Surgery and Medicine, vol. 4, no. 3, Mar. 2020, pp. 182-5, doi:10.28982/josam.643735.