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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
The average adult has about 21 square feet of skin.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
More than 4.4billion prescriptions were dispensed within the United States in 2016.
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