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In 1864, the first barbiturate (barbituric acid) was synthesized.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

The three basic body plans of bilaterally symmetrical animals. The three basic body plans of bilaterally symmetrical animals.
Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially
A fossil leaf in low-grade coal A fossil leaf in low-grade coal
Including Students with Special Needs: A Practical Guide for Classroom Teachers, 8th Edition Including Students with Special Needs: A Practical Guide for Classroom Teachers, 8th Edition
Self-esteem for Grade 3 and 4 children in Harter\'s studies Self-esteem for Grade 3 and 4 children in Harter\'s studies
A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ... A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ...
Video: Pasteur's Experiment

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