Correction

Correction for: Fissolo N, Matute-Blanch C, Osman M, Costa C, Pinteac R, Miró B, Sanchez A, Brito V, Dujmovic I, Voortman M, Khalil M, Borràs E, Sabidó E, Issazadeh-Navikas S, Montalban X, Comabella Lopez M. CSF SERPINA3 Levels Are Elevated in Patients With Progressive MS.  Neurol Neuroimmunol Neuroinflamm. 2021 Jan 12;8(2):e941. doi: 10.1212/NXI.0000000000000941.  PMID: 33436375