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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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People about to have surgery must tell their health care providers about all supplements they take.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.