A scientific review has raised fresh concerns about the long term cancer risks of vaping, concluding that e cigarettes are probably carcinogenic, while also acknowledging significant gaps in the evidence. The analysis of reviews Vaping likely to cause lung and oral cancer, Australian researchers find in new review of evidence Vaping The Guardian Does Vaping Increase Your Risk of Cancer? Evidence update on the cancer risk of vaping e cigarettes: A systematic review American Cancer Society to vape company: Keep our name outta your mouth Ars Technica Does Vaping Cause Lung Cancer?