Batool, Z., D. A. Khan, and M. B. A. Jan. “FREQUENCY OF IMPAIRED BALANCE IN PATIENTS WITH KNEE OSTEOARTHRITIS IN PESHAWAR”. Annals of Allied Health Sciences, vol. 1, no. 1, Jan. 2015, pp. 25-28, http://aahs.kmu.edu.pk/index.php/aahs/article/view/37.