After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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There are 20 feet of blood vessels in each square inch of human skin.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Symptoms of mineral deficiencies.
Soil profile exposed in a boreal forest site, showing LFH, A, B, and C horizons.
Blank periodic table
Using Soil Nails to Stabilize Slopes
Soil Texture Diagram
The volume of a well is 40.0 ft3. How many kilograms of concrete will it take to fill the well ...