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- [4] Synthetic studies on sialoglycoconjugates .86. Synthesis of sialyl Le(X) ganglioside analogues sulfated at C-6 of either the galactose or N-acetylglucosamine residues, and at both of the galactose and N-acetylglucosamine residues: Probes for clarifying the real carbohydrate ligand of L-selectin CARBOHYDRATE RESEARCH, 1996, 285 : C1 - C8