Hariharan Uma, Garg Rakesh, Sood Rajesh, Goel S
Department of Anaesthesiology and Intensive Care, Postgraduate Institute of Medical Education and Research and Dr. Ram Manohar Lohia Hospital, New Delhi - 10001, India.
J Anaesthesiol Clin Pharmacol. 2011 Apr;27(2):290-1. doi: 10.4103/0970-9185.81855.