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2. Tumors of the Eye;Reese,1951
3. Primary malignant melanoma of the optic disc;Cordes;Trans Am Ophthalmol Soc,1948
4. Tumors of the Eyes. Hagerstown;Reese,1976
5. Melanocytoma of the optic disc;Zimmerman;Int Ophthalmol Clin,1962