The human body produces and destroys 15 million blood cells every second.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
Divorce Rates, Selected Countries In many countries divorce rates have risen in recent decades.
Nursing Research
Selected Protozoan Infections
Typical characteristics of r-selected and k-selected species