3ALI G N,WALLACE K L,COOK I J,et al.Predictors of outcome following cricopharyngeal disruption for pharyngeal dysphagia[J].Dysphagia,1997,12:133-139.
4CASTELL J A,CASTELL D O.Recent developments in the manometric assessment of upper esophageal sphincter function and dysfunction[J].Dig Dis,1997,15(Suppl 1):28-39.
5COOK I J.Investigative techniques in the assessment of oral-pharyngeal dysphagia[J].Dig Dis,1998,16:125-133.
6PARAMESWARAN M S,SOLIMAN A M.Endoscopic botulinum toxin injection for cricopharyngeal dysphagia[J].Ann Otol Rhinol Laryngol,2002,111:871-874.
7ALBERTY J,OELERISH M,LUDWING K,et al.Efficacy of botulinum toxin A for treatment of upper esophageal sphincter dysfunction[J]Laryngoscope,2000,110:1151-1156.
8WANG A Y,KADKADE R,KAHRILAS P J,et al.Effectiveness of esophageal dilation for symptomatic cricopharyngeal bar[J].Gastrointest Endosc,2005,6:148-152.
9MASON R J,BREMNER C G,DEMEESTER T R,et al.Pharyngeal swallowing disorders:selection for and outcome after myotomy[J].Ann Surg,1998,228:598-608.
