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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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People about to have surgery must tell their health care providers about all supplements they take.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.