[1] UNIV CALIF,NAFFZIGER LABS NEUROSURG RES,SAN FRANCISCO,CA 94143
[2] UNIV CALIF,DEPT NEUROL SURG,SAN FRANCISCO,CA 94143
[3] UNIV CALIF,LAB RADIOBIOL,SAN FRANCISCO,CA 94143
[4] COLORADO STATE UNIV,DEPT BIOPHYS,FT COLLINS,CO 80521
[5] COLORADO STATE UNIV,DEPT RADIATION BIOL,FT COLLINS,CO 80521