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A social media post from the US Food and Drug Administration this week shows a big-eyed macaque staring out from behind bars. “Some drugs use 144 monkeys on average for preclinical testing,” the post ...

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Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...