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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Illicit drug use costs the United States approximately $181 billion every year.