319,421 ANNUAL 23rd Annual Meeting of the Swiss Societies for Experimental Biollogy (USSBE / USGEB) March 20-21, 1991 University of Geneva at the Medical Center CMU. - Basel : Birkhauser, 1991. - [1], 86 s. ; 30 cm (Experientia, ISSN 0014-4754 ; vol. 47 [suppl.])