NCIt related terms : Gastroesophageal reflux disease;
Alternative definition : CTCAE 5.0: A disorder characterized by reflux of the gastric and/or duodenal contents
into the distal esophagus. It is chronic in nature and usually caused by incompetence
of the lower esophageal sphincter, and may result in injury to the esophageal mucosal.
Symptoms include heartburn and acid indigestion.;