T. Rasool, T. P. Umer, L. Nazir, S. R. Arain, K. Phulpoto, and W. Afzal, “AXIAL SPONDYLOARTHRITIS IN PATIENTS WITH CHRONIC BACKACHE USING ASSESSMENT OF SPONDYLOARTHRITIS INTERNATIONAL SOCIETY CRITERIA FOR AXIAL SPONDYLOARTHRITIS”, J Ayub Med Coll Abbottabad, vol. 30, no. 2, pp. 253–257, May 2018.