The Nonmotor Problems of Parkinson's Disease
The Neurologist 6:18-27, Friedman,J.H.&Fernandez,H.H., 2000
Skin Lesions of the Spinal Axis and Spinal Dysraphism:Fifteen Cases & Review of the Literature
Arch Pediatr Adolesc Med 148:740-748, McAtee-Smith,J.,et al, 1994
Tethered Cord Syndrome in Adults
J Neurosurg 57:32-47, Pang,D.&Wilberger,J.E.Jr., 1982