@FergusMason1 @mihotep At the moment they aren't all clear, particularly because there are so many different products.
@mihotep @FergusMason1 But there is evidence they cause many of the early markers of COPD (moderate obstruction, lower FeNo etc...)
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@GidMK@FergusMason1 "studies" that found negative effects aren't credible. Here's why http://www.ecigarette-research.org/research/index.php/research/research-2015/210-ald … https://gfn.net.co/downloads/2015/Satellite%201/Konstantinos%20Farsalinos.pdf …Thanks. Twitter will use this to make your timeline better. UndoUndo
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