No abstract available
MeSH terms
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Animals
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Eukaryota / classification*
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Eukaryota / pathogenicity*
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Eukaryota / physiology
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Fish Diseases / parasitology*
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Fishes / parasitology
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Fresh Water
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Gills / parasitology*
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Protozoan Infections, Animal / parasitology*
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South America
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Spores, Protozoan / ultrastructure