Munjupong, S., Malaithong, W., Udomsakdi, N., & Tontisirin, N. (2017). Comparison of Epidural Steroid Injection between L5-S1 Retrodiscal Technique and S1 Transforaminal Technique in L5-S1 Spinal Stenosis with S1 Radicular Pain. The Bangkok Medical Journal, 13(1), 31. https://doi.org/10.31524/bkkmedj.2017.02.004