Corrigendum to: Nationwide survey of radiation therapy in Japan for lung cancer complicated with interstitial lung disease. (13th August 2020) - Hagiwara, Yasuhito; Nakayama, Yuko; Kudo, Shigehiro; Hayakawa, Toyokazu; Nakamura, Naoki; Kitamoto, Yoshizumi; Takahashi, Shigeo; Tsujino, Kayoko; Kubo, Nobuteru; Tamaki, Yukihisa; Nagata, Yasushi; ,