Authors: O Lindvall; S Rehncrona; P Brundin; B Gustavii; B Astedt; H Widner; T Lindholm; A Björklund; K L Leenders; J C Rothwell; R Frackowiak; D Marsden; B Johnels; G Steg; R Freedman; B J Hoffer; A Seiger; M Bygdeman; I Strömberg; L Olson Journal: Arch Neurol Date: 1989-06