Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
DNA Forms with a Primer
Isotopes of Hydrogen
Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i