Neuropsychological Effects of Long-Term Exposure to Organophosphates in Sheep Dip
Lancet 345:1135-1139, Stephens,R.,et al, 1995
Chronic Central Nervous System Effects of Acute Organophosphate Pesticide Intoxication
Lancet 338:223-227, Rosenstock,L.,et al, 1991
Paraquat & Parkinson's Disease
Neurol 36:1147, Koller,W.C., 1986