Corrigendum: Indications for chemoradiotherapy in older patients with locally advanced head and neck cancer in Japan: a questionnaire survey in the JCOG head and neck cancer study group - Koichi Yasuda; Naomi Kiyota; Kazuto Matsuura; Satoshi Saito; Yoshitaka Honma; Yoshinori Imamura; Kaoru Tanaka; Sadamoto Zenda; Takuma Onoe; Takeshi Kodaira; Satoshi Kobayashi; Hidefumi Aoyama; et al. (Frontiers in Oncology)