WORLD 311,845 XX World Congress of the International Society for Cardiovascular Surgery September 1-6, 1991, Amsterdam : abstracts. - [Torino] : [Publ. by Minerva Medica], 1991. - V, 167 s. ; 32 cm (The Journal of Cardiovascular Surgery, ISSN 0021-9509 ; vol. 32 suppl. to issue nr 4)