1. MBBS, M.D. (Anaes.), Assistant Professor, Department of Anaesthesiology and Critical Care, Darbhanga Medical College and Hospital, Laheriasarai, Bihar.
2. D.A., M.D. (Anaes.), Associate Professor and Head of Department, Department of Anaesthesiology and Critical Care, Darbhanga Medical College and Hospital, Laheriasarai, Bihar
3. Young Scientist (DST), Institute of Post-Graduate Medical Education and Research, A.J.C. Bose Road, Kolkata, West Bengal, India-700020.