The upper esophageal sphincter can be controlled when we swallow food or liquids. If the upper esophageal sphincter does not work properly, acid can flow back into the throat and cause heartburn. To ...
Sphincterotomy is a surgery to treat anal fissures when other treatments don't work. It's successful about 95% of the time and most patients are happy with the results. Some temporary incontinence may ...
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