Flexible video gastroscopy provides a minimally invasive technique/procedure/method for visualizing a portion of gastrointestinal tract. This valuable/essential/important diagnostic tool/instrument/device employs a flexible, lighted tube called an endoscope that gets inserted through the mouth and into the esophagus, stomach, and first part of the

Flexible video gastroscopy provides a minimally invasive technique/procedure/method for visualizing the upper gastrointestinal tract. This valuable/essential/important diagnostic tool/instrument/device involves a flexible, lighted tube called an endoscope that can be threaded through the mouth and into the esophagus, stomach, and initial section of