PT - JOURNAL ARTICLE AU - Walter Knopp TI - Psychiatric changes in patients treated with levodopa AID - 10.1212/WNL.20.12_Part_2.23 DP - 1970 Dec 01 TA - Neurology PG - 23--30 VI - 20 IP - 12 Part 2 4099 - http://n.neurology.org/content/20/12_Part_2/23.short 4100 - http://n.neurology.org/content/20/12_Part_2/23.full SO - Neurology1970 Dec 01; 20