title: Infection of Indoplanorbis exustus Deshayes 1834 with Echinostoma malayanum Leiper 1911 as a function of shell diameter.
mesh_terms: D000818:Animals; D004449:Echinostoma / Q000254:growth & development*; D012908:Snails / Q000033:anatomy & histology / Q000469:parasitology*; D013045:Species Specificity