Clinical and Radiological Observations on Asbestos-related Pathology, Epidemiology of Asbestos-related Disease, Scientific Basis for Environmental Control of Fibres, General Discussion on Asbestos, Dust Physics and Chemistry of Other Mineral Fibres, Clinical and Radiological Observations on Mineral-fibre-related Pathology, Epidemiology of Groups Exposed to Other Mineral Fibres, General Discussion on Other Mineral Fibres