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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The familiar sounds of your heart are made by the heart's valves as they open and close.
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