Authors: O Lindvall; P Brundin; H Widner; S Rehncrona; B Gustavii; R Frackowiak; K L Leenders; G Sawle; J C Rothwell; C D Marsden Journal: Science Date: 1990-02-02 Impact factor: 47.728
Authors: I Madrazo; V León; C Torres; M C Aguilera; G Varela; F Alvarez; A Fraga; R Drucker-Colín; F Ostrosky; M Skurovich Journal: N Engl J Med Date: 1988-01-07 Impact factor: 91.245
Authors: M L Apuzzo; J H Neal; C H Waters; A J Appley; S D Boyd; W T Couldwell; V H Wheelock; L P Weiner Journal: Neurosurgery Date: 1990-05 Impact factor: 4.654
Authors: C G Goetz; C M Tanner; R D Penn; G T Stebbins; D W Gilley; K M Shannon; H L Klawans; C L Comella; R S Wilson; T Witt Journal: Neurology Date: 1990-02 Impact factor: 9.910