Electronic cigarettes for smoking cessation and reduction.

  title={Electronic cigarettes for smoking cessation and reduction.},
  author={Hayden J McRobbie and Chris Bullen and Jamie Hartmann-Boyce and Peter Hajek},
  journal={The Cochrane database of systematic reviews},
BACKGROUND Electronic cigarettes (ECs) are electronic devices that heat a liquid - usually comprising propylene glycol and glycerol, with or without nicotine and flavours, stored in disposable or refillable cartridges or a reservoir - into an aerosol for inhalation. Since ECs appeared on the market in 2006 there has been a steady growth in sales. Smokers report using ECs to reduce risks of smoking, but some healthcare organisations have been reluctant to encourage smokers to switch to ECs… CONTINUE READING