1. Statistics from the registry of the canton of Vaud, Switzerland, 1975–1977;Levi,1982
2. Statistics from the registry of the canton of Vaud, Switzerland, 1978–1982;Levi,1987
3. International Classification of Diseases for Oncology (ICD-O),1976
4. Cancer survival from the incident cases of the Registry of Vaud;Levi;Tumori,1989
5. Le cancer dans la population vaudoise. Incidence et mortalité, 1974–1978;Levi,1981