April 27, 2018April 10, 2018Free AccessContributors to Long-Term Disability in Patients with Neuromyelitis Optica Spectrum Disorder (P6.408)Michael Levy, Maureen Mealy, Sarah Mossburg, SU-Hyun Kim, Nadja Borisow, Reydmar Lopez, Juan Pablo Ospina, … Show All … , Michael Scheel, Anusha Yeshokumar, Jacqueline Palace, Jorge Andres Jimenez-Arango, Friedemann Paul, and Ho Jin Kim Show FewerAuthors Info & AffiliationsApril 10, 2018 issue90 (15_supplement)https://doi.org/10.1212/WNL.90.15_supplement.P6.408 Letters to the Editor