Abhijeet Singh1, Kinjal Majumdar1, Anand Subash2. 1. Department of Surgical Oncology, All India Institute of Medical Sciences, Level 6, Medical College Building, Veer Bhadra Marg, Rishikesh, Uttarakhand 249203 India. 2. Department of Head and Neck Surgical Oncology, HCG Cancer Centre, Bangalore, Karnataka 560024 India.