Tedla, J. S., K. . Gular, and J. . Rani. “EFFECTIVENESS OF MOTOR TASK INTERFERENCE DURING GAIT IN SUBJECTS WITH PARKINSON’S DISEASE: A RANDOMIZED CONTROLLED TRAIL”. International Journal of Physiotherapy, vol. 4, no. 2, Apr. 2017, pp. 101-5, doi:10.15621/ijphy/2017/v4i2/141948.