FDA warns Juul, says it marketed vapes as less harmful than regular cigarettes without agency authorization The Washington Post Vaping vs smoking: nicotine equivalents explained Which Smoking Habit Puts You Most at Risk? Juuling (or Vaping) is Even More Dangerous For Your Kids Than Originally Thought: An Update Partners in Pediatrics What's In Fake Juul Pods? 4 Signs Your Juul Pod Is Fake Column: Studies show how Juul exploited social media to get teens to start vaping Los Angeles Times