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Academic Press‎(1997)‎

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By Lambrechts H.   van Niekerk F.E.   Coetzer W.A.   Cloete S.W.P.   van der Horst G.   in Theriogenology

ISSN:0093-691X|52|7|1241-1249

Elsevier‎(1999)‎

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