[1] UNIV CHICAGO,DEPT PATHOL,CHICAGO,IL 60637
[2] UNIV CHICAGO,DEPT PSYCHIAT,CHICAGO,IL 60637
[3] UNIV CHICAGO,DEPT PEDIAT,CHICAGO,IL 60637
[4] UNIV CHICAGO,JOSEPH P KENNEDY JR MENTAL RETARDAT RES CTR,CHICAGO,IL 60637
[5] UNIV CHICAGO,DEPT PHARMACOL & PHYSIOL SCI,CHICAGO,IL 60637