Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Watanabe Akihito and Taniguchi Masanobu and Tsujie Hitoshi and Fujita Masahiro and Sasaki Shigeyuki,Early Detection of Recurrent Hypopharyngeal Cancer after Radiotherapy by Utilizing Narrow-band Imaging—Report of a Case—,Nippon Jibiinkoka Gakkai Kaiho,00306622,Japanese Society of Otorhinolaryngology-Head and neck surgery,2007,110,10,680-682,https://cir.nii.ac.jp/crid/1390001205005059584,https://doi.org/10.3950/jibiinkoka.110.680