1. Kauppinen T, Vaaraneri V, Vasarna M, Toikkanen J, Jolanki R, Arnmattitaudit 1994 [Occupational diseases in Finland in 1994]. Finnish Institute of Occupational Health, Helsinki, Finland, 1995.
2. Arbejdstilsynet. Anmeldte arbejdsbetingede lidelser. Arsopp-gorelse 1991 [Reported occupational diseases in Denmark in 1991] . Copenhagen, Denmark: Arbejdstilsynet, 1992.
3. Epidemiology of musculoskeletal impairments and associated disability.
4. Social Insurance Institution. Statistical Yearbook of the Social InsuranceInstitution 1994. Report no T1:30. Helsinki, Finland.