What are the indications for 24-hour ambulatory pH and manometry measurement?
J.E. Richter (Cleveland) 

What information can be expected from a combined one-channel pH probe and two-channel pressure probe with automated analysis?
D. Armstrong (Hamilton) 

What is the value of intraluminal impedance measurements in the diagnosis of esophageal motility disorders in GER patients?
J. Fass, B. Dreuw, J. Silny, V. Schumpelick (Aachen)