Mod' E cigarette users smoke more cigarettes one year later Elf bars: Doctor explains why you shouldn't use disposable vapes Vype maker BAT attracts 1.4m new vape users in three months British American Tobacco The Guardian What You Need to Know About Vaping and Using Marijuana: Don't Do It Encore Outpatient Services Health officials trying to tackle massive and 'tragic' use of vapes among teens CBC News