[1] CASE WESTERN RESERVE UNIV, SCH MED, DEPT PEDIAT, CLEVELAND, OH 44106 USA
[2] CLEVELAND STATE UNIV, DEPT SPECIAL EDUC, CLEVELAND, OH 44115 USA
[3] HENRY FORD HOSP, DEPT PSYCHIAT, DETROIT, MI 48202 USA
[4] HENRY FORD HOSP, DEPT BIOSTAT & RES EPIDEMIOL, DETROIT, MI 48202 USA
[5] UNIV MICHIGAN, SCH MED, DEPT PSYCHIAT, ANN ARBOR, MI 48104 USA
[6] EMORY UNIV, SCH MED, DEPT PEDIAT, ATLANTA, GA 30322 USA