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ISSN:0378-1119|171|2|281-284

Elsevier‎(1996)‎

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By Flach E.J.   Ouhelli H.   Waddington D.   Oudich M.   Spooner R.L.   in Veterinary Parasitology

ISSN:0304-4017|59|3|177-188

Elsevier‎(1995)‎

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