Figure 1.

Enrollment chart. 1 61 children selected from the database were not included because they migrated out of DSS before initiation of study. 2 Blood samples were collected and analyzed from 342 children. Paired OF and blood samples were available for 330 children.

Hayford et al. BMC Public Health 2013 13:1211   doi:10.1186/1471-2458-13-1211
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