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. 2006 Jun 30;1(2):e11. doi: 10.1371/journal.pctr.0010011

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© 2006 Hahn et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Months 1 and 2: Baseline and treatment period. Month 3: Completion of treatment. Months 4–6: Posttreatment. Numbers of participants included in each data point are indicated under the x-axis. Error bars represent 95% confidence intervals for individual data points. Linear regression analysis showed a significant (p = 0.04) overall difference between azithromycin and placebo group patterns.