Primary Position Upbeating Nystagmus:A Variety of Central Positional Nystagmus
Brain 106:949-964, Fisher,A.,et al, 1983
Bilateral Sixth Nerve Palsy
Arch Neurol 33:681, Keane,J.R., 1976
Neurologic Manifestations of SLE 1972
Nebraska State Journ Med, Oct 1972, pp 395., Aita,J., 1972
Central Nervous System Manifestations of Periarteritis Nodosa
Neurol 15:114, Ford,R.G.,et al, 1965