1. Department of Chemistry and
Chemical Biology, Harvard University, 12
Oxford Street, Cambridge, Massachusetts 02138, United States
2. Wyss Institute of Biologically
Inspired Engineering, Harvard University, 60 Oxford Street, Cambridge, Massachusetts 02138, United States
3. Department of Chemistry and Alberta
Glycomics Centre, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada