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Veterinary medicine -- South Africa (13) |
Veterinary parasitology -- South Africa (13) |
Veterinary medicine (11) |
Veterinary helminthology -- South Africa (4) |
Ixodid ticks (3) |
Nematodes (3) |
South Africa (3) |
Ticks as carriers of disease (3) |
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Haemaphysalis leachi (2) |
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