1Litle VR.Laparoscopic Heller myotomy for achalasia:a reviewof the controversies[J].Ann Thorac Surg,2008,85(2):S743-746.
2Kesler KA,Tarvin SE,Brooks JA,et al.Thoracoscopy-assistedHeller myotomy for the treatment of achalasia:results of aminimally invasive technique[J].Ann Thorac Surg,2004,77(2):385-391.