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The cause of heartburn 
When we swallow food, happens to the stomach where easily digested with the help of the stomach acids. The esophageal sphincter opens and closes according to the activity of the stomach. It opens when it swallows food and remains closed at all other ...
http://acidrefluxreport.blogspot.com/2012/01/cause-of-h
eartburn.html
added by sweetdawn, 4 months 13 days ago
eartburn.html
