The prevalence of Anopheles (Diptera: Culicidae) mosquitoes in Sekong Province, Lao PDR in relation to malaria transmission. - Vythilingam, I.; Phetsouvanh, R.; Keokenchanh, K.; Yengmala, V.; Vanisaveth, V.; Phompida, S.; Hakim, S. L. (Tropical Medicine & International Health, 2003)