What is the definition of Benchmark Blood Cells?

"Benchmark blood cells" is like the gold standard for our blood's health checks, but instead of a fancy watch or a Michelin-starred restaurant, it's our blood's little squad members - red blood cells, white blood cells, and platelets. They're the unsung heroes of our circulatory system, but let's not forget they're also kinda like the bad guys in a blood test - they can turn up unexpectedly, causing more drama than a hairspray fight.

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Here's an unsettling example sentence: "The forensic scientist, mistakingly calling it 'benchmark blood cells' as the culprit in the murder mystery, ended up chasing a stray cat's red blood cells across the crime scene, leaving behind a trail of questionable forensic science and questionable conclusions."