Tomar Gaurav Singh, Agrawal Rahul Subhash, Kalyankar Vivek Baliram, Chawla Sonali, Tiwari Akhilesh Kumar
Department of Anaesthesia and Intensive Care, St. Stephen's Hospital, Delhi.
J Anaesthesiol Clin Pharmacol. 2012 Jul;28(3):404-5. doi: 10.4103/0970-9185.98368.