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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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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Scientists have demonstrated functional hair regeneration from adult stem cells Scientists have demonstrated functional hair regeneration from adult stem cells
Amsterdam Albatross - Adult in flight, showing dark plumage typical of the species. Amsterdam Albatross - Adult in flight, showing dark plumage typical of the species.
Anterior and posterior views of the adult human skeleton Anterior and posterior views of the adult human skeleton
Adult stem cells offer hope for cell therapy to treat diseases in the future Adult stem cells offer hope for cell therapy to treat diseases in the future
The divisions of the adult human brain. The divisions of the adult human brain.
Normal compound eye of adult Drosophila Normal compound eye of adult Drosophila
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