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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 horizontal fraction bar was introduced by the Arabs.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.