Vertical Diplopia
Semin Neurol 20:21-30, Acierno,M.D., 2000
Computed Tomographic Features of Nonthyroid Extraocular Muscle Enlargement
Ophthalmol 96:1038-1047, Patrinely,J.R.,et al, 1989
Clinical Decisions in Neuro-Ophthalmology
CV Mosby:154-156, Burde,R.M.,et al, 1985