Clinical study of columnar balloon dilatation therapy for severe dysphagia caused by upper esophageal sphincter achalasia after stroke
SHAO Wei-bo, WANG Yao, JIANG Wei-wei, TIAN Li, ZHANG Jie
Chinese Journal of Contemporary Neurology and Neurosurgery . 2017, (03): 185 -191 .  DOI: 10.3969/j.issn.1672-6731.2017.03.005

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