Biswas, R., Choudhury, A., Bhattacharya, D., & Nandy, S. (2021). A comparative evaluation of kambin’s triangle approach versus safe triangle approach for lumbar transforaminal epidural injection in patients with lumbar radiculopathy - A prospective, randomized, double blind study. Asian Journal of Medical Sciences, 12(8), 41–47. https://doi.org/10.3126/ajms.v12i8.36339