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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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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.