Mr Innes has covered a few years worth of territory here for your edification on the misdirection inherent in far too many “studies” on vaping and smokeless tobacco (e.g. SNU’s)
One of the outstanding weaknesses in some recent research into e-cigarette use is the obvious lack of knowledge that some researchers and commentators have about the workings of vaping devices. indeed, whether by accident or design, some massive ‘bloopers’ have been made and those have had serious repercussions. How many smokers have disregarded alternative advice and have continued to smoke.