title: Light and scanning electron microscopy of attachment organs of three monogeneans (Monogenoidea: Polyopisthocotylea).
mesh_terms: D000818:Animals; D005393:Fish Diseases; D005399:Fishes; D008855:Microscopy, Electron, Scanning; D014200:Trematoda / Q000166:cytology*; D014201:Trematode Infections / Q000662:veterinary