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Reddacliff, L A and McGregor, H and Abbott, K A and Whittington, R J (2004) Field evaluation of tracer sheep for the detection of early natural infection with Mycobacterium avium subsp paratuberculosis. AUSTRALIAN VETERINARY JOURNAL, 82 (7). pp. 426-433.
Corner, L A L and Pfeiffer, D U and Abbott, K A (2004) The respiratory tract as a hypothetical route of infection of cattle with Mycobacterium avium subspecies paratuberculosis. AUSTRALIAN VETERINARY JOURNAL, 82 (3). pp. 170-173.