How To: Using New iPhone Application for Voice Quality Assessment Based on the GRBAS Scale

by Tsuyoshi Kojima, MD, PhD, Koki Hasebe, MD, Shintaro Fujimura, MD, Yusuke Okanoue, MD, Hiroki Kagoshima, MD, Atsushi Taguchi, MD, Hirotaka Yamamoto, MD, Kazuhiko Shoji, MD, PhD, and Ryusuke Hori, MD, PhD • March 16, 2021