title: [Janus publications -- or two sides of the same coin].
authors.forename: Jürgen C
authors.initials: JC
authors.lastname: Becker
authors.forename: Walter
authors.initials: W
authors.lastname: Burgdorf
mesh_terms: D005858:Germany; D006801:Humans; D008545:Melanoma / Q000175:diagnosis* / Q000628:therapy*; D010506:Periodicals as Topic; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000628:therapy*