New strong evidence that Juul is more toxic to lungs and hearts than earlier e cigs Stanton Glantz blog Health concerns surrounded vaping long before recent deaths Anchorage Daily News JUUL Design Life Cycle FDA: Juul Illegally Marketed Vapes as Safer Than Cigarettes FDA reverses marketing ban on Juul e cigarettes Juul illegally called its e cigarette safer than smoking, FDA says Los Angeles Times