1. Georgetown University School of Medicine, Washington, DC2now with Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, California
2. Department of Radiology, Children’s National Health System, George Washington University, Washington, DC
3. University of Oklahoma Health Sciences Center, Oklahoma City
4. Division of Ophthalmology, Children’s National Health System, George Washington University, Washington, DC
5. Division of Otolaryngology, Children’s National Health System, George Washington University, Washington, DC