1. Which pathologic characteristics influence echographic patterns of retinoblastoma;Basta;Ann. Ophthalmol.,1981
2. Differential diagnosis of retinoblastoma-a statistical survey of 500 children;Howard,1965
3. Ultrasonic diagnosis of leukocoria;Kaneko,1979
4. The sagittal growth of the eye;Larsen,1971
5. Ultrasonics in ocular diagnosis;Mundt;Am. J. Ophthalmol.,1956