title: [Health care research for improving quality].
authors.forename: Richard
authors.initials: R
authors.lastname: Viebahn
mesh_terms: D001062:Appendectomy / Q000592:standards / Q000639:trends; D005265:Femoral Neck Fractures / Q000601:surgery; D005858:Germany; D006302:Health Services Research / Q000592:standards / Q000639:trends*; D006555:Hernia, Ventral / Q000601:surgery; D059685:Herniorrhaphy / Q000592:standards / Q000639:trends; D006801:Humans; D009313:National Health Programs / Q000592:standards / Q000639:trends*; D058996:Quality Improvement / Q000592:standards / Q000639:trends*; D012042:Registries; D013514:Surgical Procedures, Operative / Q000592:standards / Q000639:trends*