PT - JOURNAL ARTICLE ED - , TI - Dead end for proposed ALS therapy DP - 1998 Nov 17 TA - Canadian Medical Association Journal PG - 1238--1238 VI - 159 IP - 10 4099 - http://www.cmaj.ca/content/159/10/1238.5.short 4100 - http://www.cmaj.ca/content/159/10/1238.5.full SO - CMAJ1998 Nov 17; 159