our conclusions are that : sequential bethanechol administration significantly increases the diagnostic yield of standard esophageal manometrics in the evaluation of noncardiac chest pain and duration of contraction after pharmacologic provocation with bethanechol is the best parameter to segregate patients with chest pain from normal subjects and gastroesophageal reflux patients .
C0053526
bethanechol
C0017168
gastroesophageal reflux