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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
On average, the stomach produces 2 L of hydrochloric acid per day.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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.