Herbst, J J The lower esophageal sphincter in gastroesophageal reflux in children. [electronic resource] - Journal of clinical gastroenterology Jun 1979 - 119-23 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0192-0790 Standard No.: 10.1097/00004836-197906000-00004 doi Subjects--Topical Terms: Age FactorsEsophagogastric Junction--anatomy & histologyGastroesophageal Reflux--complicationsHumansHydrogen-Ion ConcentrationInfantInfant, NewbornPressureRespiratory Tract Diseases--physiopathology