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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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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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Illicit drug use costs the United States approximately $181 billion every year.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi
(A) The male pelvis (android) is shaped like a funnel, forming a narrower outlet than the female. (B (A) The male pelvis (android) is shaped like a funnel, forming a narrower outlet than the female. (B
Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages
Sites of tubular reabsorption and secretion. Sites of tubular reabsorption and secretion.
Wedge-shaped oil film developed below a moving block. Wedge-shaped oil film developed below a moving block.
Tubular portion of one nephron, cutaway view. The tubule starts at Bowman’s capsule. Tubular portion of one nephron, cutaway view. The tubule starts at Bowman’s capsule.
Video: Retina

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