Binocular Vertical Diplopia
Mayo Clin Proc 73:55-66, Brazis,P.W.&Lee,A.G., 1998
Vertical Diplopia
Semin Neurol 20:21-30, Acierno,M.D., 2000
Isolated Trochlear Nerve Palsy in Patients with Multiple Sclerosis
Neurol 53:877-879, Jacobson,D.M.,et al, 1999