Biswas, R., Choudhury, A., Bhattacharya, D. and 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), pp. 41–47. doi: 10.3126/ajms.v12i8.36339.