title: Scientific record: Frame retractions so they hold firm.
authors.affiliation: University of Heidelberg, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Kirsch
authors.affiliation: Max Planck Institute for Molecular Biomedicine, Münster, Germany.
authors.forename: Hans
authors.initials: H
authors.lastname: Schöler
mesh_terms: D006801:Humans; D039904:Pluripotent Stem Cells; D012180:Retraction of Publication as Topic; D012586:Science / Q000592:standards*; D015871:Scientific Misconduct