<blockquote>Pharmaceutical companies such as GSK and Pfizer, which make smoking cessation drugs, are among the opponents of e-cigarettes. "They are losing sales hand over fist to e-cigarettes and are incentivised to make it appear they are not effective," said West.</blockquote>
via <a href="http://www.theguardian.com/society/2014/may/20/e-cigarettes-nicotine-patches-smoking-study">E-cigarettes more effective than patches to help quit smoking, says study | Society | The Guardian</a>.