作者单位:Harvard Med Sch, Boston, MA 02115 USA[1]Univ Coll Dublin, Charles Inst Dermatol, Dublin, Ireland[2]PRI Healthcare Solut, Paramus, NJ USA[3]Oregon Med Res Ctr, Portland, OR USA[4]Downstate Med Ctr, Brooklyn, NY USA[5]Int Psoriasis Council, St Louis, MO USA[6]