title: 'Classic papers' from the Acta Radiologica archives.
authors.affiliation: Department of Radiology, Oslo, Norway a.skjennald@online.no.
authors.forename: Arnulf
authors.initials: A
authors.lastname: Skjennald
mesh_terms: D003718:Denmark; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009664:Norway; D010506:Periodicals as Topic; D011871:Radiology / Q000266:history*