1 Dept. Head and Neck Oncology, Health care global enterprises Ltd. Hospital, Bengaluru, Karnataka 560027, India. Electronic address: irparvathynair646@gmail.com.
2 Dept. Head and Neck Oncology, Health care global enterprises Ltd. Hospital, Bengaluru, Karnataka 560027, India. Electronic address: smita.hegde91@gmail.com.
3 Health care global enterprises Ltd. Hospital, Bengaluru, Karnataka 560027, India. Electronic address: drshalini.t@hcgel.com.
4 Health care global enterprises Ltd. Hospital, Bengaluru, Karnataka 560027, India. Electronic address: dranand.s@hcgel.com.
5 Health care global enterprises Ltd. Hospital, Bengaluru, Karnataka 560027, India. Electronic address: drvishal.rao@hcgel.com.