[1] JOHNS HOPKINS UNIV HOSP,DEPT DERMATOL,BALTIMORE,MD 21205
[2] UNIV MARYLAND,DEPT PEDIAT,BALTIMORE,MD 21201
[3] UNIV MARYLAND,DEPT NEUROL,BALTIMORE,MD 21201
[4] UNIV CALIF SAN FRANCISCO,DEPT NEUROSURG,SAN FRANCISCO,CA 94143
[5] UNIV CALIF SAN FRANCISCO,DEPT PEDIAT,SAN FRANCISCO,CA 94143