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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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The horizontal fraction bar was introduced by the Arabs.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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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.

Bones of the spinal column. Bones of the spinal column.
The two most common deformities of the spinal column are scoliosis and kyphosis. The two most common deformities of the spinal column are scoliosis and kyphosis.
Basic Marketing Research: Using Microsoft Excel Data Analysis Basic Marketing Research: Using Microsoft Excel Data Analysis
Right lateral view showing low normal curves of the vertebral column Right lateral view showing low normal curves of the vertebral column
Complete the worksheet Complete the worksheet
Plant Biology Worksheet Plant Biology Worksheet
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