1[1]Strang J,Gurling H.Computerized tomography and neuropsycho logical assessment in long-term high-dose heroin addicts.Br J Addict,1989,84:1011-1019.
2[2]Celius EG,Andersson S ieucoencephalopathy after inhalation of her oin:a case report.J Neurol Neurosurg psychiatry,1996,60:694.
3[3]Van der knaap MS,Valk J,Bart h PG,et al.Leukoencephalopathy with swelling in children and adolescents:MRI patterns and differ ential diagnosis.Neuroradiology,1995,37:679