| Affiliation: | 1. Division of Otolaryngology, Children''s National Medical Center, 111 Michigan Ave., NW, Washington, DC 20010, United States;2. Walter Reed National Military Medical Center, Bethesda, MD 20889, United States;3. Division of Anesthesia, 111 Michigan Ave., NW, Washington, DC 20010, United States;4. Division of Diagnostic Imaging and Radiology, Children''s National Medical Center, 111 Michigan Avenue, NW, Washington, DC 20010, United States;1. The Children''s Hospital of Philadelphia, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA;2. Department of Pediatric Surgery, University Children''s Hospital Zurich, Zurich, Switzerland;1. Vascular Birthmark Institute of New York, Head and Neck Institute, Lenox Hill Hospital, 150 East 77th Street, New York, NY 10075, USA;2. Department of Otolaryngology–Head and Neck Surgery, Vascular Birthmark Institute of New York, Facial Nerve Center, Manhattan Eye, Ear and Throat Hospital, 210 East 64th Street, 7 Floor, New York, NY 10065, USA;1. Fetal Intervention Team, University of Texas Southwestern Medical Center, Dallas, Texas;2. Division of Pediatric Surgery, Department of Surgery, University of Texas Southwestern Medical Center, Children''s Medical Center, Dallas, Texas |
