Reader Comments

Post a new comment on this article

Publisher's Note: Typographical error in Author Contributions

Posted by PLOS_ONE_Group on 19 Jun 2014 at 18:02 GMT

There are typographical errors in the Author Contributions section of the article. These errors were introduced while the manuscript was being prepared for publication. The correct Author Contributions are below:

Analyzed the data: BP, EP, ST, CG, KH, IK, STR, SK. Designed study and developed study objectives: BP, EP, ST, CG, KH, IK, KOC, DC. Adapted country-specific study designs, implemented data collection, interpreted results: BP, EP, ST, CG, KH, CZ, SP, LA, EA, PB, FM. Wrote the first draft of the manuscript: BP. Revised early drafts of the manuscript: EP, ST, CG, KH. Critically reviewed later drafts and approved the final manuscript: BP, EP, ST, CG, KH, IK, STR, SK, KOC, CZ, SP, LA, EA, PB, FM, DC.

No competing interests declared.