Gupta T, Kannan S, Ghosh-Laskar S, et al: Systematic review and meta-analyses of intensity-modulated radiation therapy versus conventional two-dimensional and/or or three-dimensional radiotherapy in curative-intent management of head and neck squamous cell carcinoma. PLoS One 13(7): e0200137, 2018.
Machtay M, Moughan J, Trotti A, et al: Factors associated with severe late toxicity after concurrent chemoradiation for locally advanced head and neck cancer: an RTOG analysis. J Clin Oncol 26(21): 3582-3589, 2008.
Ang KK, Harris J, Wheeler R, et al: Human papillomavirus and survival of patients with oropharyngeal cancer. N Engl J Med 363(1): 24-35, 2010.