E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis Vaping may raise cancer risk because of damage to DNA, says study South China Morning Post Post Smoking E Cigarette Use May Boost Lung Cancer Likelihood Dalgarno Institute Health Education Charity New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Do E Cigarettes Cause Cancer? Switching to E Cigarettes Did not Prevent His Lung Cancer Death