Gastroesophageal reflux disease, or GERD, is characterized by a back-flow of acidic stomach contents into the esophagus. Associated with a malfunctioning lower esophageal sphincter, its main symptom is chronic heartburn. If you suffer from this acid reflux more than twice a week, you may actually have GERD.

Diagnosis - Beth Israel Deaconess Medical Center Harvard Medical School
Information about the diagnosis of GERD.

Characteristics of GERD (IFFGD)

Treatment of GERD (IFFGD)

General Information. (Johns Hopkins Gastroenterology & Hepatology Resource Center)

Heartburn/GERD overview (Mayo Clinic)

GERD Interactive tutorial (Medline Plus)

Heartburn, Hiatal Hernia, and Gastroesophageal Reflux Disease (NIDDK)

Treatment (The Society of Gastrointestinal and Endoscopic Surgeons)