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

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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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.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Nephrolithiasis. Stones, or calculi, may form in several areas within the urinary tract. When they f Nephrolithiasis. Stones, or calculi, may form in several areas within the urinary tract. When they f
Asthma. (a) A normal bronchiole. (b) An asthmatic bronchiole. During an asthma “attack,” the bronchi Asthma. (a) A normal bronchiole. (b) An asthmatic bronchiole. During an asthma “attack,” the bronchi
An example of a memo form. An example of a memo form.
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
IQ scores form what mathematicians call a normal distribution "bell curve" IQ scores form what mathematicians call a normal distribution "bell curve"
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

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