MOG and multiple sclerosis: Nevertheless, all selected patients, not tested for MOG and AQ4 antibodies, fulfilled the IPMSSG diagnostic criteria, with at least two non-encephalopathic episodes at intervals of more than 30 days affecting at least two areas of the CNS, or at least one non-encephalopathic clinical event at least 3 months after an ADEM-like onset with new MRI lesions suggestive of multiple sclerosis [10].