Chandra Kant Pandey MDProfessor and Head, Department of Anaesthesiology, Institute of Liver and Biliary Sciences, Vasant Kunj, New Delhi, IndiaSoumya Sankar Nath MDAssociate Consultant, Department of Anaesthesiology, Sahara Hospital, Lucknow, Uttar Pradesh, IndiaMukesh Tripathi MDProfessor, Department of Anesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India