1. Division of Human GeneticsChildren's Hospital of Philadelphia Philadelphia Pennsylvania
2. Division of Pediatrics, Section of DermatologyChildren's Hospital of Philadelphia Philadelphia Pennsylvania
3. Department of Pathology and Laboratory MedicineChildren's Hospital of Philadelphia Philadelphia Pennsylvania
4. Perelman School of MedicineUniversity of Pennsylvania Philadelphia Pennsylvania
5. Department of Dermatology, Division of DermatopathologyHospital of the University of Pennsylvania Philadelphia Pennsylvania
6. Center for Fetal Diagnosis and TreatmentChildren's Hospital of Philadelphia Philadelphia Pennsylvania
7. Division of NeurologyChildren's Hospital of Philadelphia Philadelphia Pennsylvania
8. Division of General, Thoracic, and Fetal SurgeryThe Children's Hospital of Philadelphia Philadelphia Pennsylvania