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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan
The mark-recapture technique is often used to estimate population size. The mark-recapture technique is often used to estimate population size.
Vehicles equipped with onboard refueling vapor recovery usually have a reduced-size fill tube. Vehicles equipped with onboard refueling vapor recovery usually have a reduced-size fill tube.
Average household size Average household size
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Human mitotic metaphase chromosomes are identified by size, centromere location, and banding pattern Human mitotic metaphase chromosomes are identified by size, centromere location, and banding pattern
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