Source:http://linkedlifedata.com/resource/umls/id/C0017168
MSH: Retrograde flow of gastric juice (GASTRIC ACID) and/or duodenal contents (BILE ACIDS; PANCREATIC JUICE) into the distal ESOPHAGUS, commonly due to incompetence of the LOWER ESOPHAGEAL SPHINCTER.,MEDLINEPLUS: <p>Your esophagus is the tube that carries food from your mouth to your stomach. Gastroesophageal reflux disease (GERD) happens when a muscle at the end of your esophagus does not close properly. This allows stomach contents to leak back, or reflux, into the esophagus and irritate it. </p><p>You may feel a burning in the chest or throat called <a href='http://www.nlm.nih.gov/medlineplus/heartburn.html'>heartburn</a>. Sometimes, you can taste stomach fluid in the back of the mouth. This is acid <a href='http://www.nlm.nih.gov/medlineplus/indigestion.html'>indigestion</a>. If you have these symptoms more than twice a week, you may have GERD. </p><p>Anyone, including infants and children, can have GERD. If not treated, it can lead to more serious health problems. In some cases, you might need medicines