Congress Presentation
Speaker: Professor V. Caso (Perugia, IT)
Speaker: Professor R. Welsh (Edmonton, CA)
Speaker: Doctor P. Goldstein (Lille, FR) Professor R. Welsh (Edmonton, CA) Professor C. Molina Professor P. Sinnaeve (Leuven, BE) Doctor D. Leys Doctor P. Armstrong (Edmonton, CA) Professor F. Van de Werf (Leuven, BE)