Question 1
Question 2
Ask unlimited questions for free
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
There are more nerve cells in one human brain than there are stars in the Milky Way.
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.
For a complete list of videos, visit our video library