Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2001 Nov 24;323(7323):1252-3.

Collaboration with the Campbell collaboration. The Campbell principles are applied in West Midlands through public health research forum

J Middleton, E Reeves, R Lifford, F Howie, C Hyde
Comment

Collaboration with the Campbell collaboration. The Campbell principles are applied in West Midlands through public health research forum

J Middleton et al. BMJ. .
No abstract available

PubMed Disclaimer

Comment on

References

    1. Davies P, Boruch R. The Campbell Collaboration. BMJ. 2001;323:294–295. . (11 August.) - PMC - PubMed
    1. Roberts I, Zoritch B. Cochrane library. Issue 3. Oxford: Update Software; 2001. Day care for pre-school children (Cochrane review)
    1. Tobler NS, Stratton HH. Effectiveness of school-based drug prevention programs: a meta-analysis of the research. J Primary Prevention. 1997;18:71–128.
    1. Marsch LA. The efficacy of methadone maintenance interventions in reducing illicit opiate use, HIV risk behavior and criminality: a meta-analysis. Addiction. 1998;93:515–532. - PubMed
    1. Petrosino A, Turpin-Petrosino C, Finckenauer JO. Well meaning programs can have harmful effects! Lessons from experiments of programs such as scared straight. Crime and Delinquency. 2000;46:354–379.