1. Cancer hos yrkeschaufforer-problemorienterad registerstudie;Ahlberg;Laekartidningen,1981
2. Smoking habits and occupational status;Covey;J. Occupat. Med.,1981
3. A retrospective survey of cancer in relation to occupation;Decoufle;DHEW (NIOSH) Publ. No. 77-176,1977
4. Mortality and exposure to diesel exhaust among employees at a local bus company;Edling;Lakartidningen,1981
5. Work conditions and health of locomotive engineers. II: Questionnaire study, mortality and disability;Hannunkari;Scand. J. Work Environ. Health,1978