Can vaping cause cancer? The evidence suggests it might. The Washington Post e Cigarettes Safety Not Yet Proven CANSA The Cancer Association of South Africa CANSA The Cancer Association of South Africa E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) Clinical Oncology Society of Australia concludes E cigarettes are likely to cause lung cancer and oral cancer Stanton Glantz blog How E Cigarettes Affect Your Body Health Issues What's the Harm? Texas DSHS