Shafik, Ahmed Electroesophagogram in gastroesophageal reflux disease with a new theory on the pathogenesis of its electric changes. [electronic resource] - BMC surgery Oct 2004 - 13 p. digital Publication Type: Journal Article ISSN: 1471-2482 Standard No.: 10.1186/1471-2482-4-13 doi Subjects--Topical Terms: AdultElectromyography--methodsEsophagus--physiopathologyFemaleGastroesophageal Reflux--physiopathologyHumansMaleMiddle AgedPeristalsis--physiology