http://www.acg.gi.org/patients/patientinfo/gerd.asp information from the American College of Gastroenterology

http://www.gerd.com/intro/home.htm  information from AstraZeneca, a pharmaceutical company

http://digestive.niddk.nih.gov/ddiseases/pubs/gerd/index.htm information from the National Digestive Diseases Information Clearinghouse

http://www.mayoclinic.com/invoke.cfm?id=DS00099 information from the MAYO clinic

http://heartburn.about.com/cs/articles/a/esoph_stricture.htm information from about.com

http://www.fhcrc.org/science/barretts/plain.htm information from the Fred Hutchinson Cancer Research Institute

http://www.barrettsinfo.com/ More detailed information from AstraZeneca, a pharmaceutical company

http://digestive.niddk.nih.gov/ddiseases/pubs/barretts/ information from the National Digestive Diseases Information Clearinghouse

http://www.nci.nih.gov/cancerinfo/types/esophageal information from the national cancer institute

http://www.intelihealth.com/IH/ihtIH/WSIHW000/8270/8451/186866.html?d=dmtJHE information on Candida Esophagitis from Aetna InteliHealth and Harvard Medical School

http://www.intelihealth.com/IH/ihtIH/WSIHW000/8270/8451/186867.html?d=dmtJHE information on CMV Esophagitis from Aetna InteliHealth and Harvard Medical School

http://www.nlm.nih.gov/medlineplus/ency/article/000267.htm information from MedlinePlus

http://www.intelihealth.com/IH/ihtIH/WSIHW000/9339/9405.html information from Aetna InteliHealth and Harvard Medical School

http://health.discovery.com/encyclopedias/illnesses.html?article=192&page=1 information from the Discovery Health Channel

http://www.theberries.ns.ca/BOTW_archives/Bleeding_esoph_varices.html information from Berries family physician website