Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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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.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
Structure of fish gills.
Nail structure, side view and cross-sectional view.
Basic structure of the autonomic pathway
Vienna: Social Structure and Social Interaction
Structure of the human immunodeficiency virus (HIV).