[1] Brigham & Womens Hosp, Dept Med, Div Genet, Boston, MA 02115 USA
[2] Univ Calif Los Angeles, Inst Mol Biol, Los Angeles, CA 90024 USA
[3] Univ Calif Los Angeles, Dept Microbiol Immunol & Mol Genet, Los Angeles, CA USA
[4] Univ Oxford, Wellcome Trust Ctr Human Genet, Oxford, England
[5] Harvard Univ, Sch Med, Harvard MIT Div Hlth Sci & Technol, Boston, MA USA
[6] Univ London Imperial Coll Sci Technol & Med, Kennedy Inst Rheumatol, London, England
[7] Brigham & Womens Hosp, Dept Pathol, Boston, MA 02115 USA