1 Feature-rich APIs let you extend Google services and build your own web applications. 2  A web browser is all you need to build with Google Apps Script.  Store and share your projects in Google Drive or publish on the Chrome Web Store.
An esophagogastroduodenoscopy (EGD) is an outpatient procedure that is used to examine your esophagus, stomach, and the first part of your small intestine (called the duodenum). An EGD is sometimes called an upper endoscopy because it is used to evaluate the condition of your upper gastrointestinal tract.
Background. Esophagoscopy is a procedure in which a flexible endoscope is inserted through the mouth or, more rarely, through the nares and into the esophagus. The endoscope uses a charge-coupled device to display magnified images on a video screen.