how to refill a electronic cigarette cartridge Vape Pen How to refill electronic cigarettes
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doi: 10.1007/s10653-010-9344-4
But it's not just about nicotine
Deborah Arnott, chief executive of Action on Smoking and Health, said it took smokers on average 30 attempts before they succeeded in stopping, so it was vital that they were encouraged to keep trying
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However, the researchers believe that the health impact of e-cigarettes on humans will remain unknown for another decade
Ottawa: Physicians for a Smoke-free Canada, 1999
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