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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Graphical representations of ligand binding Graphical representations of ligand binding
Steric effects caused by ligand binding to the heme of myoglobin Steric effects caused by ligand binding to the heme of myoglobin
Structural changes in a multisubunit protein undergoing cooperative binding to ligand Structural changes in a multisubunit protein undergoing cooperative binding to ligand
5-25 Induced fit in the binding of an antigen to IgG 5-25 Induced fit in the binding of an antigen to IgG
Complementary shapes of a substrate and its binding site on an enzyme Complementary shapes of a substrate and its binding site on an enzyme
Exon recognition through cooperative binding of SR proteins and splicing factors Exon recognition through cooperative binding of SR proteins and splicing factors
Video: Lipid digestion - mouth, stomach and small intestine

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