About the Authors

Espen Saxhaug Kristoffersen

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

e.s.kristoffersen@medisin.uio.no

Affiliations Department of Neurology, Akershus University Hospital, Lørenskog, Norway, Department of General Practice, University of Oslo, Oslo, Norway

Bendik Slagsvold Winsvold

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Writing – review & editing

Affiliations Department of Research, Innovation and Education, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway, Department of Neurology, Oslo University Hospital, Oslo, Norway

Else Charlotte Sandset

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Writing – review & editing

Affiliations Department of Neurology, Oslo University Hospital, Oslo, Norway, The Norwegian Air Ambulance Foundation, Oslo, Norway

Anette Margrethe Storstein

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Writing – review & editing

Affiliation Department of Neurology, Haukeland University Hospital, Bergen, Norway

Kashif Waqar Faiz

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Writing – review & editing

Affiliation Department of Neurology, Akershus University Hospital, Lørenskog, Norway

Competing Interests

BWS has received speaking fees from Novartis, unrelated to the present work. ECS has received speaking fees from Bayer and Novartis, unrelated to the present work. AMS,ESK, KWF and SHJ report no conflicts of interest. This does not alter our adherence to PLOS ONE policies on sharing data and materials.