Stavros N Stavropoulos director of endoscopy and adjunct professor of medicine, David Friedel associate director of endoscopy and associate professor of clinical medicine, Rani Modayil assistant professor of clinical medicine and attending gastroenterologist, Henry P Parkman professor of medicine and director of motility laboratory
Stavropoulos S N, Friedel D, Modayil R, Parkman H P.
Diagnosis and management of esophageal achalasia
BMJ 2016; 354 :i2785
doi:10.1136/bmj.i2785