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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
The longest a person has survived after a heart transplant is 24 years.
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