title: [Seasonal distribution and natural infection with Pagumogonimus skrjabini in Pseudobythinella shimenensis].
mesh_terms: D000818:Animals; D004197:Disease Reservoirs; D012621:Seasons; D012908:Snails / Q000469:parasitology*; D014200:Trematoda / Q000302:isolation & purification*; D014201:Trematode Infections / Q000453:epidemiology*