title: Erratum to: The prognostic ability of the STarT Back Tool was affected by episode duration.
authors.affiliation: Centre for Quality, Region of Southern Denmark, P.V. Tuxensvej 5, 5500, Middelfart, Denmark. lars.morsoe@rsyd.dk.
authors.forename: Lars
authors.initials: L
authors.lastname: Morso
authors.affiliation: Nordic Institute of Chiropractic and Clinical Biomechanics, Odense, Denmark.|Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
authors.forename: Alice
authors.initials: A
authors.lastname: Kongsted
authors.affiliation: Nordic Institute of Chiropractic and Clinical Biomechanics, Odense, Denmark.|Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
authors.forename: Lise
authors.initials: L
authors.lastname: Hestbaek
authors.affiliation: Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Kent