1. Roberts Center for Pediatric Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
2. Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
3. Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
4. School of Professional & Applied Psychology, Philadelphia College of Osteopathic Medicine, Philadelphia, PA, USA
5. OCD and Anxiety Institute, Bryn Mawr, PA, USA
6. School District of Philadelphia, Philadelphia, PA, USA