How To: Opening the Palatovaginal Canal to Maximize Anterior Sphenoidotomy in Endoscopic Endonasal Surgery

by Daisuke Ogawa, MD, PhD, Hiroyoshi Akutsu, MD, PhD, Shuho Tanaka, MD, PhD, Takuma Hara, MD, Hiroyoshi Kino, MD, PhD, Hidetaka Miyamoto, MD, Rieko Ii, MD, Keisuke Miyake, MD, PhD Takashi Tamiya, MD, PhD, and Eiichi Ishikawa, MD, PhD •