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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.