BMJ · 1992 · 79 citations · 11 references
Educational facilitators and volunteer couriers do not seem to be cost effective strategies for distributing smoking interventions.
11
Coefficient Alpha and the Internal Structure of Tests
Lee J. Cronbach · Psychometrika · 1951 · 42.3K citations · Full text
Effect of general practitioners' advice against smoking
Michael A. Russell, Casey Wilson, Colm Taylor et al. · BMJ · 1979 · 934 citations · Full text
Tobacco Cessation, Cigarette Smokers, Relapse Prevention +20