Autoimmune Atypical Parkinsonism: A 10 year follow up of the original cohort. - Kumar SS; Kannoth S; Nambiar V; Gopinath S; Anandakuttan A; Umesh SU; Unnikrishnan G; Thevarkalam M; Mathai A; Rangaswamy UK; Sudhakar A (Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2025)