after titration of maximum tolerable i.v . bolus dose of adenosine , this dose was given to seven volunteers ( 20-42 years ) , instrumented with a three-lumen oesophageal pressure catheter with recording sites at the levels of the stomach , the lower oesophageal sphincter ( los ) and the oesophagus .
C0227192
lower oesophageal sphincter
C0014876
oesophagus