Profiling chronic migraine patients according to clinical characteristics: a cluster analysis approach - Katsuki, Masahito; Matsumori, Yasuhiko; Kawamura, Shin; Kashiwagi, Kenta; Koh, Akihito; Goto, Tetsuya; Kaneko, Kazuma; Wada, Naomichi; Yamagishi, Fuminori (Frontiers in Neurology, 2025)