1. CENTRAL BUREAU OF STATISTICS, NORWAY: Population by age and marital status, Universitets forlagel Oslo (1976).
2. CENTRAL BUREAU OF STATISTICS, NORWAY: Mortality in counties 1969–1972, Universitets forlagel Oslo (1974).
3. Prevalence of polyps in an autopsy series from areas with varying incidence of large-bowel cancer
4. Remnants of adenomas in colorectal carcinomas
5. Prevalence and morphological features of adenomas of the large intestine in individuals with and without colorectal carcinoma. Histopathology. In press. (1986).