title: Observations on the life cycle of Parastrigea robusta Szidat, 1928 (Trematoda: Strigeidae) in Czechoslovakia.
mesh_terms: D000818:Animals; D003604:Czechoslovakia; D004372:Ducks; D004463:Ecology; D011893:Rana esculenta; D012908:Snails; D014200:Trematoda / Q000254:growth & development*; D014562:Caudata