multiple sclerosis(5) Safety(4) Effectiveness(3) myasthenia gravis(2) Epidemiology(2) Relapsing–remitting multiple sclerosis(2) COVID-19(2) Diagnosis(2) Immunosuppressive treatment(1) ME/CFS(1) atorvastatin(1) autoantibodies(1) Cladribine tablets(1) Post-COVID-19 vaccine syndrome (PVS)(1) Optic neuritis(1) real-world(1) Demyelination(1) Aquaporin-4 (AQP4)(1) re-treatment(1) acute cerebellitis(1) balance(1) DOLORisk(1) Autoimmunity(1) Pathogenesis(1) RT-QuIC(1) Comorbidity(1) Disease-modifying therapy (DMT)(1) Neonatal myasthenia(1) serology(1) observational study(1)