A multivariate model incorporating subharmonic measurements for evaluating vocal roughness. - Itsuki Kitayama; Kiyohito Hosokawa; Shinobu Iwaki; Misao Yoshida; Akira Miyauchi; Kenji Aruga; Takanari Kawabe; Toshihiro Kishikawa; Hidenori Tanaka; Takeshi Tsuda; Takashi Sato; Yukinori Takenaka; et al. (npj Digit. Medicine, 2025)