Journal of Clinical Epidemiology
Volume 58, Issue 2 , Pages 209-210, February 2005

Re: Twisk and Proper: evaluation of the results of a randomized controlled trial: how to define changes between baseline and follow-up

National Institute of Public Health and the Environment, Centre for Information Technology and Methodology, PO Box 1, 3720 BA Bilthoven, The Netherlands

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PII: S0895-4356(04)00236-7

doi:10.1016/j.jclinepi.2004.06.009

Journal of Clinical Epidemiology
Volume 58, Issue 2 , Pages 209-210, February 2005

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