1. Department of Head and Neck Oncology, Sri Shankara Cancer Hospital, Bengaluru, Karnataka, India
2. Deaprtment of Head and Neck Surgery, University Hospitals of Leicester, Leicester, UK
3. Department of Otorhinolaryngology, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
4. Department of Otorhinolaryngology, SRM Medical College, Potheri, Chennai, Tamil Nadu, India