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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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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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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
![A depiction of slaves on a South Carolina plantation, around 1790. Likely of Yoruba descent, they pl](https://biology-forums.com/gallery/47/medium_374628_15_08_15_11_48_06_22225546.jpeg)
![That politics was always a rough business is shown in this cartoon, which shows Lincoln, assisted by](https://biology-forums.com/gallery/47/medium_375552_19_08_15_9_26_03_22340753.jpeg)