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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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Illicit drug use costs the United States approximately $181 billion every year.