Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times San Diego Pediatricians Children's Primary Care Medical Group Archive Teens and Vaping:What Parents Need to Know The Vexing Vape: Officials Say Small Vaping Device Juul A Major Health Risk To Youth WKMS Juuling: What It Is and How It Works YouTube E cigarettes disguised as USB drives could be getting more teens hooked on nicotine Chicago Tribune