Karnalkar, A., & Karnalkar, P. (2017). Intradiscal injection of oxygen-ozone and intraforaminal steroid for the treatment of prolapsed intervertebral disc: 4 years follow up. International Journal of Research in Medical Sciences, 3(12), 3848–3852. https://doi.org/10.18203/2320-6012.ijrms20151454