Patterson, D R Diffuse esophageal spasm in patients with undiagnosed chest pain. [electronic resource] - Journal of clinical gastroenterology Oct 1982 - 415-7 p. digital Publication Type: Journal Article ISSN: 0192-0790 Standard No.: 10.1097/00004836-198210000-00005 doi Subjects--Topical Terms: Esophageal Diseases--diagnosisEsophagus--physiopathologyFemaleHumansMaleManometryMiddle AgedMuscle ContractionPainSpasmThorax