1. Viruses in human cancers;Zur Hausen;Eur J Cancer,1999
2. The causes of cancer;Doll;J Natl Cancer Inst,1981
3. IARC Monographs on the Evaluation of the Carcinogenic Risks to Humans, Schistosomes, Liver Flukes and Helicobacter Pylori, vol. 61,1994
4. IARC Monographs on the Evaluation of the Carcinogenic Risks to Humans, Hepatitis Viruses, vol. 59,1994
5. IARC Monographs on the Evaluation of the Carcinogenic Risks to Humans, Human Papillomaviruses, vol. 64,1995