Hematemesis or haematemesis is the vomiting of blood. : 308 The source is generally the upper gastrointestinal tract, typically above the suspensory muscle of duodenum. : 308 Patients can easily confuse it with hemoptysis (coughing up blood), although the latter is more common.
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In information technology, an application is a computer program designed to help people perform an activity. An application thus differs from an operating system (which runs a computer), a utility (which performs maintenance or general-purpose chores), and a programming tool (with which computer programs are created).