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Effect of codeine on objective measurement of cough in chronic obstructive pulmonary disease
Jaclyn Smith, MD, PhD, Emily Owen, MPhil, John Earis, MD, Ashley Woodcock, MD Journal of Allergy and Clinical Immunology Volume 117, Issue 4, Pages (April 2006) DOI: /j.jaci Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions
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Fig 1 Time spent coughing on baseline study day and after treatment with codeine and placebo. Horizontal lines represent median time spent coughing and error bars the IQR. Journal of Allergy and Clinical Immunology , DOI: ( /j.jaci ) Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions
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Fig 2 Temporal distribution of cough on each study day. The median cough rate is plotted for each 30-minute time interval for day and night on each study day. Journal of Allergy and Clinical Immunology , DOI: ( /j.jaci ) Copyright © 2006 American Academy of Allergy, Asthma and Immunology Terms and Conditions
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