References
1.Tamhankar
AP, Almogy G, Arain MA, Portale G, Hagen JA, Peters JH, Crookes PF,
Sillin LF, DeMeester SR, Bremner CG, DeMeester TR. Surgical management
of hypertensive lower esophageal sphincter with dysphagia or chest pain.
J Gastrointest Surg. 2003 Dec;7(8):990-6; discussion 996.