B-Cell Depletion and COVID-19 Severity in Multiple Sclerosis: Remaining Challenges

Affiliations

• ¹ From Department of Neurology (J.P.) and Department of Anatomy and Neurosciences (M.M.S.), MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, the Netherlands; and Department of Neurology (R.R.V.), UCLA Multiple Sclerosis Program, Los Angeles, CA. j.killestein@vumc.nl.
• ² From Department of Neurology (J.P.) and Department of Anatomy and Neurosciences (M.M.S.), MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, the Netherlands; and Department of Neurology (R.R.V.), UCLA Multiple Sclerosis Program, Los Angeles, CA.