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Article History

Received: 3 May 2020

Revised: 18 July 2020

Accepted: 21 July 2020

First Online: 27 July 2020

Compliance with ethical standards

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: LH and JP have no disclosures. JS has received speaker honoraria from Biogen, GL-Pharma, Merck, Roche, Sanofi and Teva; serves on advisory boards for Alexion, Biogen, Celgene, Merck, Novartis, Roche, Sanofi, Shire and Teva; He received consultancy fees from Immunic and his institution received research support from Biogen, Roche and Merck.

: Not applicable.

: Not applicable.