The Acute Optic Neuritis Network (ACON): Study protocol of a non-interventional prospective multicenter study on diagnosis and treatment of acute optic neuritis - Susanna Asseyer; Nasrin Asgari; Jeffrey Bennett; Omer Bialer; Yolanda Blanco; Francesca Bosello; Anna Camos-Carreras; Edgar Carnero Contentti; Sara Carta; John Chen; Claudia Chien; Mashina Chomba; et al. (Frontiers in Neurology, 2023)