title: Unusual deterioration in a patient with multiple sclerosis on natalizumab therapy.
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gattringer
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Christian
authors.initials: C
authors.lastname: Enzinger
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Khalil
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Petra
authors.initials: P
authors.lastname: Schwingenschuh
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Alexander
authors.initials: A
authors.lastname: Pichler
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Alexander
authors.initials: A
authors.lastname: Moser
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Winfried
authors.initials: W
authors.lastname: Graninger
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Christina
authors.initials: C
authors.lastname: Ernst
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Haybaeck
authors.affiliation: Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.
authors.forename: Franz
authors.initials: F
authors.lastname: Fazekas