Willis TA, Hartley S, Glidewell L, Farrin AJ, Lawton R, McEachan RRC, Ingleson E, Heudtlass P, Collinson M, Clamp S, Hunter C, Ward V, Hulme C, Meads D, Bregantini D, Carder P, Foy R. Action to support practices implement research evidence (ASPIRE): protocol for a cluster-randomised evaluation of adaptable implementation packages targeting 'high impact' clinical practice recommendations in general practice. Implement Sci. 2016 Feb 29;11(25). doi: 10.1186/s13012-016-0387-5
Niaura R, Britt DM, Shadel WG, Goldstein M, Abrams D, Brown R. Symptoms of depression and survival experience among three samples of smokers trying to quit. Psychol Addict Behav. 2001 Mar 1;15(1):13-7.