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2. Avicultural medical practice: The nuts and bolts;Speer;Proc Assoc Avian Vets,1997
3. Captive breeding and conservation;Abramson,1995
4. Avicultural Medical management: An introduction to basic principles of flock medicine and the closed aviary concept;Speer;Vet Clin North Am,1991
5. The pathogen vs. the pathogenesis: A different view of avicultural medicine;Speer,1994