Tongthong, W., J. Marungruang, and S. Angthararak. “Coexistence of systemic lupus erythematosus after TNF inhibitor therapy in patient with ankylosing spondylitis”. Thai Journal of Rheumatology, vol. 1, no. 3, Nov. 2024, pp. 64-69, https://he04.tci-thaijo.org/index.php/tjr/article/view/2379.