1. Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, Texas, USA
2. Department of Psychiatry, Children’s Medical Center Dallas, Dallas, Texas, USA
3. University of North Texas, Denton, Texas, USA
4. Private practice in Dallas, Texas, USA
5. Private practice in Mission Viejo, California, USA
6. Department of Pediatrics, University of Texas MD Anderson Cancer Center, Houston, Texas, USA