Submicroscopic Plasmodium prevalence in relation to malaria incidence in 20 villages in western Cambodia. od Tripura, R, Peto, T, Veugen, C, Nguon, C, Davoeung, C, James, N, Dhorda, M, Maude, R, Duanguppama, J, Patumrat, K, Imwong, M, von Seidlein, L, Grobusch, M, White, N, Dondorp, A