title: Erratum to: Patient-specific spinal stiffness in AIS: a preoperative and noninvasive method.
authors.affiliation: Institute for Surgical Technology and Biomechanics, University of Bern, Stauffacherstrasse 78, 3014, Bern, Switzerland, steve.berger@istb.unibe.ch.
authors.forename: Steve
authors.initials: S
authors.lastname: Berger
authors.forename: Marcelo Elias
authors.initials: ME
authors.lastname: de Oliveira
authors.forename: Steffen
authors.initials: S
authors.lastname: Schuman
authors.forename: Jacques
authors.initials: J
authors.lastname: Schneider
authors.forename: Daniel
authors.initials: D
authors.lastname: Studer
authors.forename: Carol
authors.initials: C
authors.lastname: Hasler
authors.forename: Guoyan
authors.initials: G
authors.lastname: Zheng
authors.forename: Philippe
authors.initials: P
authors.lastname: Büchler