A National Baseline Prevalence Survey of Schistosomiasis in the Philippines Using Stratified Two-Step Systematic Cluster Sampling Design

<table>Age-specific prevalence of schistosomiasis in Luzon, 2007.</table>

Journal of Tropical Medicine

Figure 3: A National Baseline Prevalence Survey of Schistosomiasis in the Philippines Using Stratified Two-Step Systematic Cluster Sampling Design 