1. Associate Professor, Institute Of Otorhinolaryngology & Head-neck Surgery, Ipgme&r, Kolkata.
2. Senior Resident, Institute Of Otorhinolaryngology & Head-neck Surgery, Ipgme&r, Kolkata.
3. Assistant Professor, Institute Of Otorhinolaryngology & Head-neck Surgery, Ipgme&r, Kolkata.
4. Senior Resident, Institute Of Otorhinolaryngology & Head-neck Surgery, Ipgme&r, Kolkata,
5. Institute of Post-Graduate Medical Education and Research, Kolkata-700020, West Bengal, India