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There are more bacteria in your mouth than there are people in the world.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

