Impact of metal artifact reduction algorithm on gross tumor volume delineation in tonsillar cancer: reducing the interobserver variation. - Yoshiyuki Fukugawa; Ryo Toya; Tomohiko Matsuyama; Takahiro Watakabe; Yoshinobu Shimohigashi; Yudai Kai; Tadashi Matsumoto; Natsuo Oya (BMC Medical Imaging, 2022)