1. Wilson MW, Grossniklaus HE. Orbital disease in North America. Ophthalmol Clin North Am. 1996;9:539–47.
2. Wilson MW, Buggage RR, Grossniklaus HE. Orbital lesions in the southeastern United States. Orbit. 1996;24:17–24.
3. Henderson J. Orbital Tumors. 3rd ed. New York: BC Decker; 1994.
4. Kennedy RE. An evaluation of 820 orbital cases. Trans Am Ophthalmol Soc. 1984;82:134–57.
5. Rootman J. Diseases of the Orbit. Philadelphia: JB Lippincott; 1988.