RT Journal Article SR Electronic T1 Dopamine metabolism in Parkinson's disease JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 73 OP 73 DO 10.1212/WNL.13.1.73 VO 13 IS 1 A1 Melvin Greer A1 Clyde M. Williams YR 1963 UL http://n.neurology.org/content/13/1/73.abstract AB