1. Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, 223 62 Lund, Sweden.
2. Section of Rheumatology, Department of Clinical Sciences, Lund University and Skåne University Hospital, 221 85 Lund, Sweden.
3. Division of Hematology and Transfusion Medicine, Institute of Laboratory Medicine, Lund University, 223 62 Lund, Sweden.
4. Broad Institute, 7 Cambridge Center, Cambridge, MA 02142, USA.