D. T. . Jadeja, D. N. . Vyas, and D. M. . sheth, “TO STUDY THE EFFECT OF PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION ON BACK MUSCLE STRENGTH, PAIN AND QUALITY OF LIFE IN SUBJECTS WITH CHRONIC LOW BACK PAIN AN EXPERIMENTAL STUDY”, Int J Physio, vol. 2, no. 5, pp. 778–785, Oct. 2015.