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External validity of randomised controlled trials in asthma: to whom do the results of the trials apply?
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  1. Correspondence to:
    Professor R Beasley
    Medical Research Institute of New Zealand, PO Box 10055, Wellington, New Zealand; richard.beasley{at}mrinz.ac.nz
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Citation

Travers J, Marsh S, Williams M, et al
External validity of randomised controlled trials in asthma: to whom do the results of the trials apply?

Publication history

  • Received June 12, 2006
  • Accepted October 9, 2006
  • First published November 14, 2006.
Online issue publication 
February 28, 2007

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