Intravenous fosphenytoin therapy for the rescue of acute trigeminal neuralgia crisis in pre- and post-neurosurgical patients: a retrospective observational study - Noro, Shusaku; Endo, Hideki; Asayama, Bunsho; Amano, Yuki; Okuma, Masahiro; Nomura, Ryota; Honjo, Kaori; Seo, Yoshinobu; Nakamura, Hirohiko (Frontiers in Neurology, 2025)