title: [To our readers: certified continuing education].
authors.affiliation: Ruhrlandklinik, Abteilung für Pneumologie/Allergologie.
authors.forename: U
authors.initials: U
authors.lastname: Costabel
mesh_terms: D002568:Certification; D004502:Education, Medical, Continuing; D005858:Germany; D015272:Pulmonary Medicine / Q000193:education*