title: [Dear colleagues].
authors.affiliation: Universitätsklinik für Anaesthesiologie, Intensiv- und Schmerztherapie, BG-Kliniken Bergmannsheil, Bürkle-de-la-Camp-Platz 1, 44789 Bochum. zenz@anaesthesia.de
authors.forename: M
authors.initials: M
authors.lastname: Zenz
mesh_terms: D005858:Germany; D006801:Humans; D010146:Pain / Q000517:prevention & control; D059408:Pain Management; D012955:Societies, Medical