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Radiography as primary outcome in rheumatoid arthritis: acceptable sample sizes for trials with 3 months’ follow up
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  1. Correspondence to:
    Professor D van der Heijde
    Department of Internal Medicine, Division of Rheumatology, University Hospital Maastricht, PO Box 5800, 6202 AZ Maastricht, The Netherlands; dhesint.azm.nl
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Bruynesteyn K, Landewé R, van der Linden S, et al
Radiography as primary outcome in rheumatoid arthritis: acceptable sample sizes for trials with 3 months’ follow up

Publication history

  • Accepted January 18, 2004
  • First published March 22, 2004.
Online issue publication 
October 12, 2004

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