1. Benign melanomas (nevi) of the choroid and ciliary body;Hale;Arch Ophthalmol,1965
2. Problems in the differential diagnosis of choroidal nevi and malignant melanomas;Gass;Trans Am Acad Ophthalmol Otolaryngol,1977
3. Differential Diagnosis of Intraocular Tumors;Gass,1974
4. Pigmented nevi of the choroid; clinical study of secondary changes in the overlying tissues;Naumann;Trans Am Acad Ophthalmol Otolaryngol,1971
5. Amelanotic small flat lesions of the choroid;Sigelman;Arch Ophthalmol,1978