1. Vascular Birthmark Institute of New York, New York, New York, USA.
2. Department of Otolaryngology, Lenox Hill Hospital, New York, New York, USA.
3. Department of Ophthalmology, New York University Grossman School of Medicine, New York, New York, USA.
4. College of Medicine, The Pennsylvania State University, Hershey, Pennsylvania, USA.
5. Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA.