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Cardiovascular Effects of Secondhand Smoke: Nearly as Large as Smoking

Lopez-Meyer P, Patil Y, Tiffany T, Sazonov E (2013) Detection of hand-to-mouth gestures using a RF operated proximity sensor for monitoring cigarette smoking

Cathinone, the primary active substance in khat, is known to stimulate the release of catecholamines

Tobacco use burdens the global economy with an estimated US$ 1.4 trillion in healthcare costs for treating the diseases caused by tobacco and lost human capital from tobacco-attributable sickness and death

You can operate it with one hand while typing on a computer keyboard or holding a steering wheel