PT - JOURNAL ARTICLE ED - , TI - Practice Parameter [RETIRED] AID - 10.1212/WNL.47.2.600 DP - 1996 Aug 01 TA - Neurology PG - 600--602 VI - 47 IP - 2 4099 - http://n.neurology.org/content/47/2/600.short 4100 - http://n.neurology.org/content/47/2/600.full SO - Neurology1996 Aug 01; 47