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Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.