authors.affiliation: , D-78532, Tuttlingen, Deutschland.
authors.forename: Thomas
authors.initials: T
authors.lastname: Engels
authors.affiliation: , D-66484, Großsteinhausen, Deutschland.
authors.forename: Hans Georg
authors.initials: HG
authors.lastname: Hoppenrath
authors.affiliation: , Nürnberg, Deutschland.
authors.forename: Markus
authors.initials: M
authors.lastname: Gosch
authors.affiliation: Helios Klinikum Schwelm, Dr.-Moeller-Str. 15, D-58332, Schwelm, Deutschland.
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Heppner