In order to represent informed consent, there are several other elements which must take place. These are best by Professor James Grimmelmann over at :
NEwhere also a tobacco researcher, a fellow named Michael Siegel, as stating that: "the levels of exposure of E Cigs are either 'well below that of cigarette smoking' in those chemicals that are present, or, more generally electronic cigarette use 'reduces the user's exposure to a wide range of chemicals in tobacco smoke.'" Thus, NEwhere is not stating that electronic cigarettes are absolutely safe, only that they are less hazardous than tobacco cigarettes.
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