2Veroli P, Benhamou D. Comparison of hypertonic saline(5%), isotonic saline and Ringer's lactate for fluid preloading before lumbar exterdural anaesthesia Br J Anaesth, 1992,69:461.
3Scalabrini A, Simonetti P, Velasco IT et al. Hypertonic NaC1 solution prevents Bupivacaine-induced cardiovascular toxicity Circ Shock, 1992,36(2):231.