title: Erratum to: Skeletal anchorage for everybody? A questionnaire study on frequency of use and clinical indications in daily practice.
authors.affiliation: Department of Orthodontics, University of Giessen, Schlangenzahl 14, 35392, Giessen, Deutschland, niko.c.bock@dentist.med.uni-giessen.de.
authors.forename: Niko C
authors.initials: NC
authors.lastname: Bock
authors.forename: S
authors.initials: S
authors.lastname: Ruf