1. Centre for Glycosciences, Keele University, Keele ST5 5BG, UK
2. School of Life Sciences, Keele University, Keele ST5 5BG, UK
3. Analytical and Biological Science Department, National Institute of Biological Standards and Control (NIBSC), Blanche Lane, South Mimms, Potters Bar EN6 3QG, UK
4. Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, UK