1. 1) De Felice F, Musio D, Tombolini V (2015) “Follow-up in head and neck cancer: a management dilemma.” Advances in Otolaryngology http://dx.doi.org/10.1155/2015/703450
2. 2) Edge SB, Byrd DR, Compton CC, Fritz AG, Greene FL, Trotti A (Eds) (2010) AJCC cancer staging manual, 7th ed., Springer, New York.
3. 3) Greenslade J, Wyman A (2006) Investigation of dysphagia. Surgery: 24: 89–92.
4. 4) Mancuso AA (2010) Infrahyoid Neck, Head and Neck Lymphatic System, and Thoracic Inlet: Introduction and General Principles, Receptor localization, Mancuso AA (Eds), pp. 1189–1217, Lippincott Williams & Wilkins, Philadelphia.
5. 5) National Comprehensive Cancer Network. Head and Neck Cancer (Version 2.2016). https://www.nccn.org/professionals/physician_gls/pdf/head-and-neck.pdf (Accessed October 17, 2016)