Upper endoscopy - Mayo Clinic
https://www.mayoclinic.org/tests-procedures/endoscopy/about/pac-20395197
WebAug 26, 2022 · An upper endoscopy, also called an upper gastrointestinal endoscopy, is a procedure used to visually examine your upper digestive system. This is done with the help of a tiny camera on the end of a long, flexible tube. A specialist in diseases of the digestive system (gastroenterologist) uses an endoscopy to diagnose and sometimes treat ...
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