Dual Vaping and Smoking Quadruples Lung Cancer Risk New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis Clinical Oncology Society of Australia concludes E cigarettes are likely to cause lung cancer and oral cancer Stanton Glantz blog Does Vaping Cause Lung Cancer? Research and Facts