Silent Sinus Syndrome:An Unusual Cause of Vertical Diplopia
Klinische Monatsblatter fur Augenheilkunde 212:397-399, Durig,J.,et al, 1998
Unilateral Cavernous Angioma of the Thalamus Disclosed by Transitional Disorders in the Upward Gaze
Minerva Medica 81:731-733, Lazzarino,L.G.,et al, 1990