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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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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Methyl-directed mismatch repair in E. coli Methyl-directed mismatch repair in E. coli
In vitro oligonucleotide site-directed mutagenesis In vitro oligonucleotide site-directed mutagenesis
In the heat of the Battle of Lake Erie, Perry had to abandon his flagship, the Lawrence, which had b In the heat of the Battle of Lake Erie, Perry had to abandon his flagship, the Lawrence, which had b
Western basin edges are dominated by warm poleward-directed currents (for example, Gulf Stream), ... Western basin edges are dominated by warm poleward-directed currents (for example, Gulf Stream), ...
Development of Foliation due to Directed Pressure Development of Foliation due to Directed Pressure
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ... A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ...
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

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