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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Much time and effort occurs between the development of a research idea and the statistical analysis Much time and effort occurs between the development of a research idea and the statistical analysis
Tracking time of marker entry generates a chromosome map Tracking time of marker entry generates a chromosome map
Time-course of reprogramming mouse fibroblasts into induced pluripotent stem cells Time-course of reprogramming mouse fibroblasts into induced pluripotent stem cells
Positioning the Patient in the Prone Position Positioning the Patient in the Prone Position
A camshaft position actuator used in a cam-in-block engine. A camshaft position actuator used in a cam-in-block engine.
Traction neck with head in neutral position. With recipient’s face directly up, hold head at ... Traction neck with head in neutral position. With recipient’s face directly up, hold head at ...
Video: Smoking Cessation

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