Stereotactic radiosurgery for Koos grade IV vestibular schwannoma in patients ≥ 65 years old: a multi-institutional retrospective study. - Dumot C; Pikis S; Mantziaris G; Xu Z; Dayawansa S; Anand RK; Nabeel AM; Sheehan D; Sheehan K; Reda WA; Tawadros SR; Karim KA; et al. (Acta neurochirurgica, 2023)