Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.
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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
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There are 20 feet of blood vessels in each square inch of human skin.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
Diagram of a typical prokaryotic cell
Structure of a typical animal cell
In the 1800s, most people were poor, and formal education beyond the first several grades was a ...
Typical Organization of the CPT Manual
Typical optical distributor.
Stepping It Up: Foundations for Success in Math, First Canadian Edition