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The letter submitted by Crosbie and Woodhead1 pertaining to our study of azithromycin for prevention of acute chronic obstructive pulmonary disease (COPD) exacerbations2 contains a number of errors and misconceptions.
First, Crosbie and Woodhead stated that our study was not double-blind. The complete protocol (published as an on-line supplement to the manuscript) indicated that ‘This is a prospective, randomised, double-blind, placebo-controlled trial…’.1
Second, while Crosbie and Woodhead correctly note that …
Footnotes
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Funding This work was supported by National Heart Lung and Blood Institute grant number NHLBI 1 U10 HL074409-01. Supported conduct of study.
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Competing interests None.
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Provenance and peer review Not commissioned; internally peer reviewed.