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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.