PT - JOURNAL ARTICLE AU - Adrian Williams TI - Parkinson's disease AID - 10.7861/clinmedicine.9-6-628 DP - 2009 Dec 01 TA - Clinical Medicine PG - 628--628 VI - 9 IP - 6 4099 - http://www.rcpjournals.org/content/9/6/628.short 4100 - http://www.rcpjournals.org/content/9/6/628.full SO - Clin Med2009 Dec 01; 9