H. N. Tipu and M. Mukarram Bashir, “PREVALENCE OF HUMAN LEUKOCYTE ANTIGEN (HLA) B27 AMONG PATIENTS OF SPONDYLOARTHROPATHIES REFERRED TO A TERTIARY CARE CENTER”, Pak Armed Forces Med J, vol. 67, no. 6, pp. 958–61, Dec. 2017, Accessed: Nov. 26, 2024. [Online]. Available: https://pafmj.org/PAFMJ/article/view/1125