5Williams VA, Peters JH. Achalasia of the esophagus: a surgical disease. J Am Coil Surg,2009,208 ( 1 ) : 151 - 162.
6Liu JF, Zhang J, Tian ZQ, et al. Long-term outcome of esophageal myotomy for achalasia. World J Gastroenterol,2004,10 (2) :287- 291.
7Simic AP, Radovanovic NS, Skrobic OM, et al. Significance of limited hiatal dissection in surgery for achalasia. J Gastrointest Surg,2010,14(4 ) :587-593.
8Ortiz A, de Haro LF, Parrilla P, et al. Very long-term objective evaluation of belier myotomy plus posterior partial fundoplication in patients with achalasia of the cardia. Ann Surg,2008,247 ( 2 ) : 258 -264.
9Devaney E J, Lannettani MD, Orringer MB, et al. Esophagectomy for achalasia: patient selection and clinical experience. Ann Thoracic Surg,2001,72:854 - 858.
10Williams VA, Peters JH. Achalasia of the esophagus: a surgical dis- ease. J Am Coil Surg. 2009,208:151 -162.