Garg Rakesh, Goila Ajay, Pawar Mridula
Departments of Anaesthesiology and Intensive Care, Postgraduate Institute of Medical Education and Research and Dr. Ram Manohar Lohia Hospital, New Delhi, India.
Indian J Anaesth. 2011 Nov;55(6):627-8. doi: 10.4103/0019-5049.90627.