1Division of Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
2Division of Genetics, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
3Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
4Department of Biomedical Informatics, Harvard Medical School, Boston 02115, MA, USA
