Mistry GS, Vyas NJ, Sheth MS. Comparison Of The Effect Of Active Release Technique Versus Proprioceptive Neuromuscular Facilitation Stretching (Modified Hold-Relax) On Hamstring Flexibility In Patients Having Chronic Low Back Pain.: Comparison Of The Effect Of Active Release Technique V/S Proprioceptive Neuromuscular Facilitation Stretching. Natl J Integr Res Med [Internet]. 2018 Jan. 14 [cited 2024 May 4];6(5):66-70. Available from: http://nicpd.ac.in/ojs-/index.php/njirm/article/view/969