E cigarettes: 'cancer risk close to zero' Bhekisisa Vaping and Cancer: A Wake Up Call We Can't Ignore TOGA Thoracic Oncology Group Australasia Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Vaping and smoking together increases lung cancer risk fourfold Research: E cigarettes Tobacco Insider