Gunton, Kammi B. MDa; Nelson, Leonard B. MD*,a; Tabas, Janine G. MDa
aDepartment of Pediatric Ophthalmology and General Ophthalmology Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA
*Reprint requests to Leonard B. Nelson, MD, Department of Pediatric Ophthalmology, Wills Eye Hospital, 900 Walnut Street, Philadelphia, Pennsylvania 19107, USA.
Accepted for publication June 20, 2001.
doi: 10.1016/S0886-3350(01)01037-9