共 2 条
[1]
SECOND EXPERIMENT TO CHALLENGE RESISTANCE TO TUBERCULOSIS IN BCG VACCINATED CATTLE IN MALAWI
[J].
BRITISH VETERINARY JOURNAL,
1972, 128 (12)
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[2]
EXPERIMENT TO CHALLENGE RESISTANCE TO TUBERCULOSIS IN BCG VACCINATED CATTLE IN MALAWI
[J].
BRITISH VETERINARY JOURNAL,
1972, 128 (11)
:541-+