title: Blood parasitism of some fishes from Montana and Yellowstone National Park.
mesh_terms: D000818:Animals; D016782:Apicomplexa / Q000302:isolation & purification; D005393:Fish Diseases / Q000453:epidemiology*; D005399:Fishes; D009009:Montana; D010272:Parasitic Diseases / Q000453:epidemiology / Q000382:microbiology; D010273:Parasitic Diseases, Animal; D014959:Wyoming