Affiliation: | Heinrich-Pette-Institute for Experimental Virology and Immunology, Martinistr. 52, 20251 Hamburg, Germany,1. MRC Virology Unit, Church Street, Glasgow G11 5JR, Scotland, United Kingdom,2. Departments of Biochemistry, McGill University, McIntyre Medical Building, 3655 Promenade Sir William Osler, Montreal, Quebec, Canada H3G 1Y63. |