1)Rikitake R, Ando M, Saito Y, et al. Current status of superficial pharyngeal squamous cell carcinoma in Japan. Int J Clin Oncol 22:826-833, 2017
2)Iizuka T, Kikuchi D, Suzuki Y, et al. Clinical relevance of endoscopic treatment for superficial pharyngeal cancer:feasibility of techniques corresponding to each location and long-term outcomes. Gastrointest Endosc 93:818-827, 2021
3)Iizuka T, Kikuchi D, Hoteya S, et al. A new technique for pharyngeal endoscopic submucosal dissection:peroral countertraction(with video). Gastrointest Endosc 76:1034-1038, 2012
4)Yoshio T, Tsuchida T, Ishiyama A, et al. Efficacy of double-scope endoscopic submucosal dissection and long-term outcomes of endoscopic resection for superficial pharyngeal cancer. Dig Endosc 29:152-159, 2017
5)Minami H, Tabuchi M, Matsushima K, et al. Endoscopic submucosal dissection of the pharyngeal region using anchored hemoclip with surgical thread:A novel method. Endosc Int Open 4:E828-831, 2016
6)Katada C, Muto M, Fujii S, et al. Transoral surgery for superficial head and neck cancer:National Multi-Center Survey in Japan. Cancer Med 10:3848-3861, 2021