Cluster Headache
Neurol 42 (Suppl 2) :22-31992., Mathew,N.T., 1992
Chronic Migrainous Neuralgia, A Variant Of Cluster Headache
Brain 103:149-159, Pearce,J.M.S., 1980
Downbeating Nystagmus and Other Ocular Motor Defects Caused by Lithium Toxicity
Neurol 39:481-487, Corbett,J.J.,et al, 1989