1Rosenberg PH, Kytta J, Alila A. Absorption of bupicaine, etidocaine lignocaine and ropivacaine into rat sciatic nerve and human extradural and subcutaneous fat. Br J Anaesth, 1986, 58:310-314.
2Feldman HS. Toxicity of local anesthetics agent. In:Rice SA, Fish KJ, eds. Anesthetic toxicity. New York: Raven Press, 1994. 107-133.