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30,34 The scale consisted of 17 items: Do you feel any drug effects?, Do you like the drug effects?, Do you dislike the drug effects, Do you feel any good drug effects?, Do you feel any bad drug effects?, Nausea, Dizziness, Nervousness, Perspiration, Headache, Excessive salivation, Heart pounding, Confused, Weakness, Well-being, Confident, and Do you want more of the drug(s) that you received today? These items were presented as visual analog scales (VAS) consisting of a word or phrase above a horizontal line anchored on the left with not at all and on the right with extremely. Participants used the mouse to make a mark along the horizontal line, and item scores were calculated as a percentage representing the mark's distance from the left anchor

Understanding and communicating the benefits of nicotine replacements, such as e-cigarettes, is an important step towards reducing the number of tobacco-related deaths here in the UK. Other British experts hailed the study, published in the journal Annals Of Internal Medicine, as unique and important