[1] Johns Hopkins Univ, Div Dermatoimmunol, Dept Dermatol, Baltimore, MD 21205 USA
[2] Childrens Hosp, Div Pulm Dis, Denver, CO 80218 USA
[3] Thomas Jefferson Univ, Dept Dermatol & Cutaneous Biol, Philadelphia, PA 19107 USA
[4] Kurume Univ, Dept Dermatol, Fukuoka, Japan