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The boundaries of mild chronic obstructive pulmonary disease (COPD): design of the searching clinical COPD onset (SOON) study

Authors

  1. Correspondence to Dr Orlando Díaz; odiazpat{at}gmail.com
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Citation

Labarca G, Bustamante A, Valdivia G, et al
The boundaries of mild chronic obstructive pulmonary disease (COPD): design of the searching clinical COPD onset (SOON) study

Publication history

  • Received December 23, 2016
  • Revised May 25, 2017
  • Accepted June 29, 2017
  • First published August 11, 2017.
Online issue publication 
August 11, 2017

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