E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis Lung cancer risks persist with e cigarette use after quitting tobacco smoking Test Kit: Propylene Glycol in Indoor Air as an Indicator of Vaping LCS Laboratory Inc. We know a lot about how ecigs promote cancer metastasis Stanton Glantz blog Menthol in electronic cigarettes causes biophysical inhibition of pulmonary surfactant American Journal of Physiology Lung Cellular and Molecular Physiology American Physiological Society Clearing the Air: The Harsh Reality of Vaping and Smokeless Products Leading to Cancer