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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.