[1] NCI,FREDERICK CANC RES FACIL,PROGRAM RESOURCES INC,CELL & MOLEC STRUCT LAB,FREDERICK,MD 21701
[2] JOHNS HOPKINS UNIV,SCH MED,DEPT NEUROL,BALTIMORE,MD 21205
[3] JOHNS HOPKINS UNIV,SCH MED,DEPT MOLEC BIOL,BALTIMORE,MD 21205
[4] JOHNS HOPKINS UNIV,SCH MED,DEPT GENET,BALTIMORE,MD 21205