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Chronic obstructive pulmonary disease
Original article
Measuring respiratory symptoms in clinical trials of COPD: reliability and validity of a daily diary

Authors

  1. Correspondence to Dr Nancy Kline Leidy, Sr. Vice President, Scientific Affairs, Evidera, 7101 Wisconsin Ave, Suite 600, Bethesda, MD 20814, USA; nancy.leidy{at}evidera.com
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Citation

Leidy NK, Sexton CC, Jones PW, et al
Measuring respiratory symptoms in clinical trials of COPD: reliability and validity of a daily diary
Thorax 2014;69:424-430.

Publication history

  • Received August 27, 2013
  • Revised January 31, 2014
  • Accepted February 4, 2014
  • First published March 4, 2014.
Online issue publication 
September 01, 2022

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/