1. M.B.B.S., M.S. (ENT), Assistant Professor, Department of ENT and Head & Neck Surgery, Sri Krishna Medical College and Hospital, Muzaffarpur, Bihar.
2. M.B.B.S., M.S. (ENT), Senior Resident, Department of ENT and Head & Neck Surgery, Sri Krishna Medical College and Hospital, Muzaffarpur, Bihar.
3. M.B.B.S., M.S. (ENT), DLO, Associate Professor, Department of ENT and Head & Neck Surgery, Sri Krishna Medical College & Hospital, Muzaffarpur, Bihar
4. Young Scientist (DST), Institute of Post-Graduate Medical Education and Research, A.J.C. Bose Road, Kolkata-700020, West Bengal, India