D. P. Chudasama, D. P. Nambiar, D. P. Sorathiya, D. S. Swaminarayan, D. S. Parikh, and D. I. A. Chadha, “Comparison Of Epidural Ropivacaine And Bupivacaine For Lower Limb Surgery: Sutureless Circumcision”, Natl J Integr Res Med, vol. 4, no. 3, pp. 113–118, Jun. 2013.