Factor analysis and clustering of motor and psychiatric dimensions in idiopathic blepharospasm. - Gigante AF; Hallett M; Jinnah HA; Berardelli A; Perlmutter JS; Berman BD; Jankovic J; Bäumer T; Comella C; Ercoli T; Belvisi D; Fox SH; et al. (Parkinsonism & related disorders, 2025)