1. MacLennan R, Jensen OM, Masbech J et al. Dietary fibre transit-time, faecal bacteria, steroids, and colon cancer in two Scandinavian populations. Lancet 1977;2:207–11.
2. Reddy BS, Hedges A, Laakso K, Wynder EL. Fecal constituents of a high-risk Finnish population for the development of large bowel cancer Cancer Letters 1978;4:217–22.
3. Teppo L, Hakama M, Hakulinen T, Lehtonen M, Saxen E. Cancer in Finland 1953–1970: Incidence, mortality and prevalence. Acta Pathol Microbiol Scand[A] 1975;Suppl 252:1–79.
4. Finnish Cancer Registry. Cancer Incidence in Finland 1958. 1963;No III.
5. Finnish Cancer Registry. Cancer Incidence in Finland 1977. 1981;No XXII.