Levodopa Addiction in Idiopathic Parkinson Disease
Neurol 65:1508, Borek,L.L &Friedman,J.H., 2005
Parkinsonism Associated with Long-Term Cocaine Abuse
Arch Int Med 157:241, Domingo,P.&Martinez,E., 1997
Mild Parkinsonism in Persons Exposed to 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP)
Neurol 39:1483-1487, Tetrud,J.W.,et al, 1989
Neurologic Complications of Heroin Addiction
Bull NY Acad Sci 49:4, Ritcher,R.W.,et al, 1973