Henrik Clausen1, Martin L Olsson2,3. 1. Copenhagen Center for Glycomics, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark. hclau@sund.ku.dk. 2. Hematology and Transfusion Medicine, Department of Laboratory Medicine, Lund University, BMC C14, Lund, Sweden. Martin_L.Olsson@med.lu.se. 3. Department of Clinical Immunology and Transfusion Medicine, Laboratory Medicine, Office of Medical Service, Lund, Sweden. Martin_L.Olsson@med.lu.se.