Michael Kaprail, et al. “ To Study the Effect of Myofascial Trigger Point Release in Upper Trapezius Muscle Causing Neck Disability in Patients With Chronic Periarthritis Shoulder”. Sports and Exercise Medicine , vol. 5, no. 1, Jan. 2019, pp. 1-4, https://openventio.us/index.php/SEM/article/view/919.