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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.