[1] BAYLOR COLL MED,ROY & LILLIE CULLEN DEPT UROL RES,DIV UROL,HOUSTON,TX 77025
[2] ST LUKES EPISCOPAL HOSP,UROL SERV,HOUSTON,TX 77025
[3] UNIV MINNESOTA HOSP,DEPT NEUROL,MINNEAPOLIS,MN 55455
[4] UNIV MINNESOTA HOSP,DEPT ELECT ENGN,MINNEAPOLIS,MN 55455