Khan, A. F., K. Parveen, and A. S. Khan. “Efficacy and Tolerability of Eperisone Versus Tizanidine in Patients Suffering from Low Back Pain With Muscle Spasm”. International Journal of Research in Medical Sciences, vol. 5, no. 6, May 2017, pp. 2694-00, doi:10.18203/2320-6012.ijrms20172472.