[1] Massachusetts Gen Hosp, Dept Dermatol, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Dept Rheumatol, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[4] Harvard Univ, Sch Med, Dept Dermatol, Boston, MA 02115 USA
[5] Harvard Univ, Sch Med, Dept Med, Boston, MA USA
[6] Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA