A Randomized Placebo-Controlled Trial of Varenicline for Smoking Cessation Allowing Flexible Quit Dates

Efficacy and Safety of Varenicline for Smoking Cessation in Patients With Cardiovascular Disease

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A randomized, controlled trial of NRT-aided gradual vs. abrupt cessation in smokers actively trying to quit

(2010) John R. Hughes et al.   DRUG AND ALCOHOL DEPENDENCE

Quitting by Gradual Smoking Reduction Using Nicotine Gum

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Precessation treatment with nicotine patch significantly increases abstinence rates relative to conventional treatment

(2009) Jed E. Rose et al.   NICOTINE & TOBACCO RESEARCH

Varenicline for smoking cessation: A placebo-controlled, randomized study

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Use of Smoking-Cessation Treatments in the United States

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