80. What is the definition of motor disorders of the esophagus ?
D. Couturier (Paris)

81. What place is occupied by pain in the symptomatology of primary motor disorders of the esophagus ?
D. Couturier (Paris)

82. The overall specificity and sensitivity of proper esophageal radiography remain useful for evaluating functional esophageal abnormalities
D.J. Ott (Winston Salem)

83. Is a classification of esophageal manometric abnormalities possible ?
G. Vantrappen (Leuven)

84. What is the usefulness of recording myoelectric potentials in the esophagus ?
L. Tibbling (Linkdping)

85. What is the role of radioactive transit in detection of dysmotility ?
L. Engelholm, J. Abramovici, J. De Toeuf (Brussels)

86. What is the concordance of radionuclide transit with manometry ?
D.O. Castell (Philadelphia)

87. Does radionuclide transit reveal anomalies not found at manometry ?
C.O.H. Russel (Melbourne)

88. How is a patient to be classified as having a motor syndrome ?
D. Couturier (Paris)