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Old 06-21-2015, 08:24 AM
soccertese soccertese is offline
Magnate
 
Join Date: Nov 2007
Posts: 2,531
15 yr Member
soccertese soccertese is offline
Magnate
 
Join Date: Nov 2007
Posts: 2,531
15 yr Member
Default read this paper

it will answer all your questions

Beans, roots and leaves
A History of the Chemical Therapy
of Parkinsonism
by
Paul Bernard Foley
B.Sc. (Hons) (Macquarie), M.A. (Würzburg)
Doctoral dissertation submitted to the Bavarian Julius Maximilian University,
Würzburg (2001)

http://d-nb.info/96446392X/34
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