M. Kashif, A. Raqib, S. Imran Ahmed, S. Bunyad, T. Ghaffar, and N. Arif, “A RELIABILITY AND VALIDITY STUDY OF THE URDU VERSION OF THE UNIFIED PARKINSON DISEASE RATING SCALE”, Rehman J Health Sci, vol. 5, no. 1, pp. 57–63, Jun. 2023.