MedlinePlus. Heartburn. http://www.nlm.nih.gov/medlineplus/ency/article/003114.htm. Updated January 31, 2011. Accessed Month 20, 2013.
Institute for Quality and Efficiency in Health Care. Fact sheet: Heartburn and GERD. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0048152/. Published July 19, 2012. Updated September 13, 2012. Accessed May 20, 2013.
American College of Gastroenterology. Acid Reflux. http://patients.gi.org/topics/acid-reflux/. Accessed May 20, 2013.
Nexium®, Prilosec OTC®, Prevacid®, Tums®, and Rolaids® registered trademarks are property of their respective owners.