After publication of the article [1], it has been brought to our attention that there is an error in figure 1. The number of excluded secondary schools should read "50" and not "72". The rest of the data in the figure is accurate.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5674745 | PMC |
http://dx.doi.org/10.1186/s12889-017-4885-4 | DOI Listing |
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