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\bibitem{Roth_etal1996} Roth, T. L., Swanson, W. F., Wildt, D. E., Collins, D., Burton, M., \& Garell, D. M. (1996). \textit{Snow leopard (Panthera uncia) spermatozoa are sensitive to alkaline pH, but motility in vitro is not influenced by protein or energy supplements} (Vol. 17).

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