Endoscopic Transnasal Resection for Chordoma Invaded to Lower-Third Clivus—Usefulness of Preoperative Simulation With Virtual Endoscopic Imaging: 2-Dimensional Operative Video. Issue 4 (10th October 2022) - Ikeda, Naokado; Kosaka, Takuya; Kanemitsu, Takuya; Tsuji, Yuichiro; Kameda, Masahiro; Nonoguchi, Naosuke; Furuse, Motomasa; Kawabata, Shinji; Takami, Toshihiro; Yokoyama, Kunio; Kawanishi, Masahiro; Wanibuchi, Masahiko