title: Multiple Sclerosis-A Tuning Fork Still Required.
authors.affiliation: Department of Clinical Neuroscience, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden2Department of Neurology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
authors.forename: Fredrik
authors.initials: F
authors.lastname: Piehl
mesh_terms: D006801:Humans; D009103:Multiple Sclerosis; D014463:Ultrasonography