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