title: Frequent but nonspecific venous narrowing in paediatric multiple sclerosis.
authors.forename: Eva
authors.initials: E
authors.lastname: Wuerfel née Tysiak
authors.forename: Hannah-Maria
authors.initials: HM
authors.lastname: Hummel
authors.forename: Jens
authors.initials: J
authors.lastname: Wuerfel
authors.forename: Jutta
authors.initials: J
authors.lastname: Gärtner
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D008279:Magnetic Resonance Imaging; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000473:pathology*; D010690:Phlebography; D012189:Retrospective Studies; D014689:Venous Insufficiency / Q000453:epidemiology* / Q000473:pathology*