1[1]Eckardt VF,Aignherr C,Bernhard G.Predictors of outcome in patients with achalasia treated by pneumatic dilation[J].Gastroenterology,1992,103(6):1732~1738
2[2]Schwartz HM,Cahow CE,Tranbe M.Outcome after perforation sustained during pneumatic dilation for achalasia[J].Dig dis Sci,1993,38(8):1409~1413