Abstract
[This corrects the article DOI: 10.1371/journal.pmed.1003661.].
Highlights
In the Methods and findings subsection of the Abstract, the first sentence is incorrect
The correct sentence is: Informed consent was waived for study participants
This study complied with the Declaration of Helsinki (S1 Checklist STROBE)
Summary
In the Methods and findings subsection of the Abstract, the first sentence is incorrect.
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