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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.