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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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The horizontal fraction bar was introduced by the Arabs.
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There are 60,000 miles of blood vessels in every adult human.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.