PT - JOURNAL ARTICLE ED - , TI - Section on Neuroepidemiology AID - 10.1212/WNL.20.4.398 DP - 1970 Apr 01 TA - Neurology PG - 398--398 VI - 20 IP - 4 4099 - http://n.neurology.org/content/20/4/398.short 4100 - http://n.neurology.org/content/20/4/398.full SO - Neurology1970 Apr 01; 20