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GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Medication errors are three times higher among children and infants than with adults.

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