An article of interest has appeared online at Medscape Medical News. The article ‘What causes cancer? There’s a lot we don’t know’ explores possible causes of cancer from lifestyle and environmental factors, to chance. The article references Paul Brennan and George Davey Smith’s recent JNCI paper Identifying novel causes of cancers to enhance cancer prevention: New strategies are needed. ICEP investigators Paul Brennan, Richard Martin and Marc Gunter are all quoted in the Medscape article commenting on the potential causes of cancer.