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Key Points Vitamins and trace elements are grouped because of the very small amount required to satisfy their extensive metabolic activity. Vitamins are essential organic substances that the body cannot synthesize or does not consistently synthesize sufficient for the metabolic…
Key Points Almost all patients with duodenal ulcers and most with chronic gastritis have demonstrable Helicobacter pylori infection. H. pylori stool antigen assays and urea breath tests are useful in diagnosis and in monitoring for eradication after treatment. Acute pancreatitis…