[1] Copenhagen Univ Hosp, Dept Neurol, Danish Multiple Sclerosis Registry, Rigshosp, Glostrup, Denmark
[2] Univ Southern Denmark, Hosp Southern Jutland, Dept Neurol, Aabenraa, Denmark
[3] Danish Multiple Sclerosis Soc, Valby, Denmark
[4] Univ Hosp Southern Denmark, Esbjerg Hosp, Dept Neurol, Esbjerg, Denmark
[5] Copenhagen Univ Hosp Herlev & Gentofte, Dept Neurol, MS Clin, Herlev, Denmark
[6] Copenhagen Univ Hosp, Dept Neurol, Hillerod, Denmark
[7] Univ Southern Denmark, Slagelse Hosp, Dept Neurol, Odense, Denmark
[8] Univ Southern Denmark, Inst Reg Hlth Res & Mol Med, Odense, Denmark
[9] Reg Hosp Viborg, Dept Neurol, Viborg, Denmark
[10] Aarhus Univ Hosp, Dept Neurol, Aarhus N, Denmark
[11] Godstrup Hosp, Dept Neurol Physiotherapy & Occupat Therapy, Herning, Denmark
[12] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark