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The longest a person has survived after a heart transplant is 24 years.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
If you could remove all of your skin, it would weigh up to 5 pounds.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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