Cancer Causes & Control is an international refereed journal that both reports and stimulates new avenues of investigation into the causes, control, and subsequent prevention of cancer. Its multidisciplinary and multinational approach draws together information published in a diverse range of journals. Coverage extends to variation in cancer distribution within and between populations; factors associated with cancer risk; preventive and therapeutic interventions on a population scale; economic, demographic, and health-policy implications of cancer; and related methodological issues. Cancer Causes & Control publishes original and review articles, hypotheses, comments, opinions, and letters which have direct relevance to researchers and practitioners working in epidemiology, medical statistics, cancer biology, health education, medical economics and related fields. The journal also provides significant information for government agencies concerned with cancer research, control and policy.