E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis Smoking, vaping called a deadly combination for lung cancer risk UPI.com Former smokers who vape now still need to be screened for lung cancer. Many of them aren't Clinical Oncology Society of Australia concludes E cigarettes are likely to cause lung cancer and oral cancer Stanton Glantz blog