11th highlights of gastroenterology in the Netherlands : proceedings of a symposium held 28-31 March 1996 in Venice / edit. C. B. H. W. Lamers, J. A. M. Raaijmakers Vol. 32 Suppl. 223 1997. Oslo : Scandinavian University Press, 1997. 104 s.   [1, z toho voľných 0, prezenčne 1]