Presentation and Outcome in S1P-RM and Natalizumab-Associated Progressive Multifocal Leukoencephalopathy: A Multicenter Cohort Study

In the Research Article “Presentation and Outcome in S1P-RM and Natalizumab-Associated Progressive Multifocal Leukoencephalopathy: A Multicenter Cohort Study” by Blant et al.,¹ the study groups in the byline should be listed as the “CORPUS and Italian PML study groups.” The article has been replaced by a corrected version. The authors regret the error.