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The familiar sounds of your heart are made by the heart's valves as they open and close.
Medication errors are three times higher among children and infants than with adults.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).