Horner's Syndrome Due to First-Order Neuron Lesions of the Oculosympathetic Pathway
AJR 169:581-584, Nagy,A.N.,et al, 1997
The Cervical Myelopathy Associated with Rheumatoid Arthritis:Analysis of 32 Patients, with Two Post-mortem Cases
Ann Neurol 3:144, Nakano,K.K.,et al, 1978