Dasgupta Sugata, Das Soumi, Bhattacharya Dipasri, Agarwal Sonia
Department of Anaesthesiology, Critical Care and Pain Medicine, R.G. Kar Medical College and Hospital, Kolkata, West Bengal, India.
Indian J Anaesth. 2014 Mar;58(2):222-3. doi: 10.4103/0019-5049.130844.