title: Effect of light on the emergence pattern of Plagiorchis micracanthos cercariae from Stagnicola exilis.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D003624:Darkness; D008027:Light; D012908:Snails / Q000469:parasitology*; D013997:Time Factors; D014200:Trematoda / Q000502:physiology*