Mekhola, M. H., Chowdhury, M. A. J., Ahmed, M. S., Khan, A. H., & Paul, S. (2019). Frequency of HLA-B27 gene among patients with ankylosing spondylitis and its consequences on clinical manifestation. BIRDEM Medical Journal, 9(3), 188–192. https://doi.org/10.3329/birdem.v9i3.43078