[1] Massachusetts Gen Hosp, Dept Dermatol, Boston, MA 02114 USA
[2] Harvard Med Sch, Harvard Combined Dermatol Residency, Boston, MA 02115 USA
[3] Massachusetts Gen Hosp, Div Infect Dis, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Div Gen Internal Med, Boston, MA 02114 USA