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Uric acid crystals in a human urine sample with a pH of 5

Uric acid crystals in a human urine sample with a pH of 5, detected by an automated urinalysis system. (Source: Doruk Salancı on January 22, 2014. Creative Commons Attribution-Share Alike 3.0 Unported license, creativecommons.org/licenses/by-sa/3.0/deed.en.)

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