Electronic cigarette smoke reduces ribosomal protein gene expression to impair protein synthesis in primary human airway epithelial cells Scientific Reports Vaping E Cigarette Resources and Information Humboldt County Office of Education E cigarette flavorings may damage cilia production and function Harvard Gazette EHE Researchers Find Thousands of Unknown Chemicals in E Cigarettes Johns Hopkins Bloomberg School of Public Health CBP and FDA seize nearly $34 million of illegal E Cigarettes during joint operation U.S. Customs and Border Protection