Nicotine replacement therapy for smoking cessation. [No authors listed] C Silagy, T Lancaster, LF Stead… - … of systematic reviews, 2004 - cochranelibrary.com GSID: 5J2CzgilRLgJ
Physician advice for smoking cessation. [No authors listed] LF Stead, D Buitrago, N Preciado… - Cochrane database …, 2013 - cochranelibrary.com GSID: LHzUfmL7G4oJ
Measures of abstinence in clinical trials: issues and recommendations. Hughes JR. JR Hughes, JP Keely, RS Niaura… - Nicotine & Tobacco …, 2003 - academic.oup.com GSID: MJgj-eXRsuYJ