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==References==
==References==
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* Merck & Co (2008) '''The Merck Veterinary Manual (Eighth Edition)''' ''Merial''
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* Radostits, O.M, Arundel, J.H, and Gay, C.C. (2000) '''Veterinary Medicine: a textbook of the diseases of cattle, sheep, pigs, goats and horses''' ''Elsevier Health Sciences''
[[Category:To_Do_-_lizzyk]]
[[Category:To_Do_-_lizzyk]]