PT - JOURNAL ARTICLE ED - , TI - Parkinson's disease DP - 1989 Jun 01 TA - Canadian Medical Association Journal PG - 1268b--1268 VI - 140 IP - 11 4099 - http://www.cmaj.ca/content/140/11/1268b.short 4100 - http://www.cmaj.ca/content/140/11/1268b.full SO - CMAJ1989 Jun 01; 140