Piper, M. E., Smith, S. S., Schlam, T. R., Fiore, M. C., Jorenby, D. E., Fraser, D., & Baker, T. B. (2009). A randomized placebo-controlled clinical trial of five smoking cessation pharmacotherapies.
Citação norma ChicagoPiper, Megan E., Stevens S. Smith, Tanya R. Schlam, Michael C. Fiore, Douglas E. Jorenby, David Fraser, and Timothy B. Baker. A Randomized Placebo-controlled Clinical Trial of Five Smoking Cessation Pharmacotherapies. 2009.
MLA CitationPiper, Megan E., et al. A Randomized Placebo-controlled Clinical Trial of Five Smoking Cessation Pharmacotherapies. 2009.
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