<http://schema.org/description>
"Gastroesophageal reflux disease (GERD), also known as acid reflux disease, occurs when the lower esophageal sphincter (LES) does not close properly and stomach contents leak back, or reflux, into the esophagus."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.verywell.com/gerd-what-is-acid-reflux-1742326>