Study: e cigarette users with substances linked to bladder cancer in urine E cigarettes and cancer: new report faces sharp criticism Vejpkollen.se Vaping may 'wake up' cancer cells and trigger wave of disease in a decade's timeVaping may 'wake up' cancer cells and trigger wave of disease in a decade The Independent Growing the research evidence on e cigarettes by Research at CRUK Medium smokefreeuk Cancer Research UK (CRUK) Cancer Research UK fears a disposables ban may alter perception of vaping harm ECigIntelligence