title: [Comparative studies of work disability and invalid status caused by rheumatic diseases in Czechoslovakia and East Germany with special reference to trend].
mesh_terms: D001172:Arthritis, Rheumatoid / Q000453:epidemiology; D003430:Cross-Sectional Studies; D003604:Czechoslovakia; D004185:Disability Evaluation; D005859:Germany, East; D006801:Humans; D012216:Rheumatic Diseases / Q000453:epidemiology*
vernacular_title: Vergleichende Untersuchungen zur Arbeitsunfähigkeit und Invalidität infolge rheumatischer Erkrankungen in der CSSR und DDR unter besonderer Berücksichtigung des Trends.