title: Erratum to: Headaches attributed to airplane travel: a Danish survey.
authors.affiliation: SMI®, Department of Health science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Sebastian Bao Dinh
authors.initials: SB
authors.lastname: Bui
authors.affiliation: SMI®, Department of Health science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Torben
authors.initials: T
authors.lastname: Petersen
authors.affiliation: SMI®, Department of Health science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Jeppe Nørgaard
authors.initials: JN
authors.lastname: Poulsen
authors.affiliation: SMI®, Department of Health science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark. gazerani@hst.aau.dk.
authors.forename: Parisa
authors.initials: P
authors.lastname: Gazerani