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. 2019 Jul 1;9:55–78. doi: 10.2147/DNND.S208815

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© 2019 Costello et al.

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PRISMA diagram for study inclusion and exclusion. ^aA focus on RCTs was imposed at level 2 screening. All other study types were excluded (ie, publications that were duplicates, non-English publications). ^bOne RCT compared two treatments of interest: IVMP versus PMP.

Abbreviations: IVIG, intravenous immunoglobulin; IVMP, intravenous methylprednisolone; PMP, plasmapheresis; RCI, repository corticotropin injection; RCT, randomized controlled trial; PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses.