title: Erratum to: Feasibility and usefulness of ultrasonography in idiopathic intracranial hypertension or secondary intracranial hypertension.
authors.affiliation: Department of Neurology, University of the Saarland, Homburg, Saar, Germany.|Department of Translational Medicine, Section of Neurology, University of Piedmont East "A. Avogadro", Novara, Italy.
authors.forename: Piergiorgio
authors.initials: P
authors.lastname: Lochner
authors.affiliation: Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Brigo
authors.affiliation: Neurology Unit, Stroke Unit, IRCCS, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy.
authors.forename: Maria Luisa
authors.initials: ML
authors.lastname: Zedde
authors.affiliation: Department of Neurology, General Hospital Madonna del Soccorso, San Benedetto del Tronto, Italy.
authors.forename: Sandro
authors.initials: S
authors.lastname: Sanguigni
authors.affiliation: Department of Translational Medicine, Section of Neurology, University of Piedmont East "A. Avogadro", Novara, Italy.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Coppo
authors.affiliation: Department of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Nardone
authors.affiliation: Department of Translational Medicine, Section of Neurology, University of Piedmont East "A. Avogadro", Novara, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Naldi
authors.affiliation: Department of Internal Medicine, Health Sciences, University "A. Avogadro", Novara, Italy.
authors.forename: Daniele
authors.initials: D
authors.lastname: Sola
authors.affiliation: Neurological Practice, and Department of Neurology, Justus-Liebig-University Giessen, Juergen-Ponto-Platz 2, Frankfurt am Main, D-60329, Germany. erwin.stolz@neuro.med.uni-giessen.de.
authors.forename: Erwin
authors.initials: E
authors.lastname: Stolz