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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.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.