title: Use of sentinel ducks in epizootiological studies of anatid blood protozoa.
mesh_terms: D000818:Animals; D016782:Apicomplexa; D001715:Bird Diseases / Q000635:transmission*; D004372:Ducks; D005777:Geese; D009509:New Brunswick; D009674:Nova Scotia; D011528:Protozoan Infections / Q000635:transmission; D011529:Protozoan Infections, Animal