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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.
Thyroid conditions may make getting pregnant impossible.
Illicit drug use costs the United States approximately $181 billion every year.
Asthma cases in Americans are about 75% higher today than they were in 1980.
In 1864, the first barbiturate (barbituric acid) was synthesized.