1. Guarner F, Lazaro S, Gascon E, Royo M: Map of digestive disorders and diseases (2009). Eximan R & Herrero E. 2018; [https://www.worldgastroenterology.org/UserFiles/file/wdhd-2008-map-of-digestive-disorders.pdf].
2. Update on the epidemiology of gastro-oesophageal reflux disease: a systematic review;El-Serag;Gut,2013
3. Gastroesophageal reflux disease (GERD): risk factors, and impact on quality of life—a population-based study;Eslick;J Clin Gastroenterol,2009
4. Gastro-oesophageal reflux disease (GORD) in Australian general practice patients;Miller;Aust Fam Physician,2015
5. Gastroesophageal reflux disease (GERD): a review of conventional and alternative treatments;Patrick;Altern Med Rev,2011