[1] UNIV CALIF LOS ANGELES,CTR HLTH SCI,DEPT PEDIAT,LOS ANGELES,CA 90024
[2] UNIV CALIF LOS ANGELES,CTR HLTH SCI,DEPT PSYCHIAT,LOS ANGELES,CA 90024
[3] UNIV CALIF LOS ANGELES,CTR HLTH SCI,MENTAL RETARDAT RES CTR,LOS ANGELES,CA 90024
[4] UNIV HEIDELBERG,KINDER KLIN,D-6900 HEIDELBERG 1,FED REP GER