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. 2010 Feb 16;7(2):e1000233. doi: 10.1371/journal.pmed.1000233

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Locally weighted regression (LOESS) models of the risk of treatment failure as a function of the time interval between NVP ingestion and starting ART. The left panel defines treatment failure according to the study's primary definition; the right panel defines treatment failure according to a planned secondary definition (see Methods). The horizontal dotted line indicates the failure rate among the women who were not exposed to single-dose NVP. The individual plusses (+) indicated on each panel represent individual patients who were either failing (top) or not failing (bottom).