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. 2018 May 2;13(5):e0195599. doi: 10.1371/journal.pone.0195599

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© 2018 Roberts et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — (A) Parallelism: Diluted giant panda urine and PGFM standard demonstrate parallel displacement (R² = 0.999, P < 0.001). (B) Recovery: Validation that components of panda urine did not interfere with recovery of exogenous hormone spiked into urine (R² = 0.999, P < 0.001).