1. Registrar General's Decennial Supplement. England and Wales, part IIa: Occupational Mortality,1938
2. Cancer Morbidity and Causes of Death among Danish Brewery Workers;Jensen,1980
3. International epidemiology of head and neck cancer;Boyle,1990
4. The occupation of fishing as a risk factor in cancer of the lip;Spitzer;N Engl J Med,1975
5. Epidemiological evaluation of sunlight as a risk factor of lip cancer;Lindqvist;Br J Cancer,1978