1. Motor Disorders;Clouse, R.E.,1989
2. Disorders of motility;Wetherall, D.J.,1987
3. Studies of the incidence and prevalence of achalasia in the Nottingham area;Mayberry, J.F.; Atkinson, M.;Q J Med,1985
4. Variations in the prevalence of achalasia in Great Britain and Ireland: An epidemiological study based on hospital admissions;Mayberry, J.F.; Atkinson, M.,1987
5. Surgical considerations in the management of achalasia of the esophagus;Sawyers, J.L.; Foster, J.H.;Ann Surg,1967