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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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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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The horizontal fraction bar was introduced by the Arabs.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
Funeral Rituals and Practices among U.S. Cultural Groups Funeral Rituals and Practices among U.S. Cultural Groups
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Carbonyl groups reaction type Carbonyl groups reaction type
Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a Estimates of the dates of origin and extinction of the three main groups of hominins (green, blue, a
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