4Th International Conference on New Trends in Clinical and Experimental Immunosuppression, Date: FEB 17-20, 2000, Location: GENEVA, SWITZERLAND, Sponsors: F Hoffmann La Roche Ltd, Fujisawa GmbH, Fresenius Hemocare GmbH, Imtix Sangstat, Wyeth Ayerst Global Pharmaceut, Biotest Pharma GmbH, Novartis