Twelfth-Nerve Palsy:Analysis of 100 CasesArch Neurol 53:561-566, Keane,J.R., 1996
Delayed Radiation Encephalopathy after Radiotherapy for Nasopharyngeal Cancer:A CT Study of 45 CasesJ Comput Assist Tomogr 15:181-187, Hu,J.,et al, 1991