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| Category | Citation |
| Publication | Garrott, R. A., J. G. Cook, J. G. Berardinelli, P. J. White, S. Cherry, and D. B. Vagnoni. 1997. Evaluation of the urinary allantoin:creatinine ratio as a nutritional index for elk. Canadian Journal of Zoology 75:1519-1525. |
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