title: Toxocara species eggs in London parks.
mesh_terms: D000818:Animals; D001196:Ascariasis / Q000635:transmission*; D004285:Dogs; D008131:London; D012987:Soil; D014119:Toxocara / Q000302:isolation & purification*; D014120:Toxocariasis / Q000635:transmission*
chemical_list: D012987:Soil