Letter

Clarifications: open access follow up for inflammatory bowel disease

BMJ 2002; 324 doi: 10.1136/bmj.324.7353.1586/a (Published 29 June 2002)
Cite this as: BMJ 2002;324:1586.2

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  1. J G Williams (j.g.williams@swan.ac.uk), professor of health services research,
  2. D R Cohen, professor of health economics,
  3. I T Russell, professor of health sciences
  1. University of Wales Swansea, Swansea SA2 8PP
  2. Business School, University of Glamorgan, Pontypridd CF37 1DL
  3. Department of Health Sciences and Clinical Evaluation, University of York, York YO10 5DD

    EDITOR—In our authors' reply to the letter by Barber and Thompson, we stated that further analysis of our data, using their recommended t test on bootstrapped data, had confirmed the results of the non-parametric tests used in our original article.1–3 In …

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