cigarette tax by state Excise Taxes --- United States, 2009 State Cigarette Tax Rates

In the simple unadjusted linear model the number of cigarettes smoked in the last 24 hours was a predictor of cotinine concentrations ( R 2 = 0.339

Although sharing similar key components and operating procedures, e-cigarettes can be classified on four generations reflecting major differences in both their design and technology

If you're not sure whether e-cigarettes will work for you, starting out with a disposable electronic cigarette (which normally cost much less than the standard starter kits) is a good option to consider

It is a high quality peer-reviewed publication with an international editorial board that has itself wide experience in the field of smoking cessation