Affiliations

• ¹ 1 Department of Neurology, Oslo University Hospital, Oslo, Norway 2 Department of Neurology, University of Oslo, Oslo, Norway hormor@ous-hf.no.
• ² 3 Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.
• ³ 4 Centre of Clinical Research, Unit of Epidemiology and Biostatistics, Oslo University Hospital, Oslo, Norway.
• ⁴ 5 Women and Children's Clinic, Vestre Viken Hospital Trust, Drammen, Norway.
• ⁵ 1 Department of Neurology, Oslo University Hospital, Oslo, Norway 2 Department of Neurology, University of Oslo, Oslo, Norway.