Dr. T. De Backer, Aalst, Belgium
C. Malevez, Bruxelles, Belgium
C. RIVIERE, PARIS, France
T. Radam, Meiningen, Germany
R. Davó Rodriguez, Alicante, Spain
Dr. S. Hümmeke, Osnabrück, Germany
R. Hebestreit, Frankfurt, Germany
D. Lemke, Berlin, Germany
NobelProceJ. van Meurs, Houten, Netherlands
F. Tromp, HOUTEN, Netherlands
M. Gesele, Stockholm, Germany
T. Staas, DEN BOSCH, Netherlands
U. Wurmstich, Osnabrück, Germany
Dr. med. dE. Behrens, Rostock, Germany
conférenciB. Cannas,L. GILLOT, PARIS, France
T. NGUYEN, BAGNOLET, France
J. DUMOUCHEL, MARSEILLE, France