1. Group of Glycoconjugates, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic, Laboratory of Experimental Medicine, and Department of Oncology, Faculty of Medicine, Palacký University and Faculty Hospital in Olomouc, 775 20, Czech Republic, Department of Organic Chemistry and Department of Biochemistry, Faculty of Science, Charles University, Hlavova 8, 128 40 Prague 2, Czech Republic, and Institute of Microbiology...