1. Department of Pediatrics and Mental Retardation Research Center, UCLA School of Medicine, Los Angeles, CA
2. Department of Pediatrics, Medical College of Ohio, Toledo, OH
3. Mary Bridge Children's Hospital, Tacoma, WA
4. Nottingham Press Union, WA
5. Department of Pediatrics and Mental Retardation Research Center UCLA School of Medicine, Los Angeles, CA
6. Department of Pediatrics, University of Alabama, Birmingham, AL