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Why results of clinical trials and observational studies of antitumour necrosis factor (anti-TNF) therapy differ: methodological and interpretive issues
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  1. Correspondence to:
    Dr F Wolfe
    National Data Bank for Rheumatic Diseases, Arthritis Research Center Foundation, 1035 N. Emporia, Suite 230, Wichita, KS 67214, USA; fwolfearthritis-research.org
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Wolfe F, Michaud K, DeWitt EM
Why results of clinical trials and observational studies of antitumour necrosis factor (anti-TNF) therapy differ: methodological and interpretive issues

Publication history

  • First published October 12, 2004.
Online issue publication 
October 12, 2004

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