More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The Cardiac Landmarks. A = Aortic Area; P = Pulmonic Area; E = Erb’s Point; T = Tri