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Mean number of adenolymphangitis (ADL) episodes during 1995–2008 among 117 lymphedema patients who received and did not receive mass drug administration (MDA) in Léogane, Haiti. The vertical line represents implementation of the intervention, MDA, in October 2000. The data represent the raw mean number of ADL episodes per year and do not reflect the actual slope of the line after controlling for other covariates.
