Rheumatic disorders in general practice: incidence and aetiology.
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000453:epidemiology / Q000209:etiology / Q000276:immunology; D005194:Family Practice; D006801:Humans; D008875:Middle Aged; D012216:Rheumatic Diseases / Q000453:epidemiology* / Q000209:etiology*; D006113:United Kingdom