title: Research into fish diseases.
mesh_terms: D000818:Animals; D001424:Bacterial Infections; D003634:DDT; D005393:Fish Diseases; D005399:Fishes; D009369:Neoplasms; D010272:Parasitic Diseases; D014777:Virus Diseases; D014877:Water Pollution, Chemical
chemical_list: D003634:DDT