title: 'Classic Papers' in this issue of Acta Radiologica.
authors.affiliation: Editor in Chief, Department of Radiology Oslo, Norway a.skjennald@online.no.
authors.forename: Arnulf
authors.initials: A
authors.lastname: Skjennald
mesh_terms: D049673:History, 20th Century; D006801:Humans; D009664:Norway; D010506:Periodicals as Topic; D011871:Radiology / Q000266:history*; D013548:Sweden