For over 80 years, scientists have said that the condition is caused by stomach acid backing up through the esophagus – until now.
http://www.usnews.com/news/articles/2016-05-18/reflux-disease-not-caused-by-acid-but-inflammation-study-shows
http://www.usnews.com/news/articles/2016-05-18/reflux-disease-not-caused-by-acid-but-inflammation-study-shows