K Jamrozik, M Vessey, G Fowler, N Wald, G Parker, H Van Vunakis et al
Jamrozik K, Vessey M, Fowler G, Wald N, Parker G, Van Vunakis H et al.
Controlled trial of three different antismoking interventions in general practice.
Br Med J (Clin Res Ed) 1984; 288 :1499
doi:10.1136/bmj.288.6429.1499