[1] Columbia Univ, Dept Dermatol, New York, NY 10032 USA
[2] Columbia Univ, Dept Genet & Dev, New York, NY 10032 USA
[3] Univ Naples Federico II, Dept Pediat, Immunol Unit, Naples, Italy
[4] Massachusetts Gen Hosp, Cutaneous Biol Res Ctr, Charlestown, MA 02129 USA
[5] Harvard Univ, Sch Med, Dept Dermatol, Charlestown, MA 02129 USA
[6] Rockefeller Univ, Lab Stat Genet, New York, NY 10021 USA