TY - JOUR T1 - Amyotrophic lateral sclerosis: is excitotoxicity the key? JF - Canadian Medical Association Journal JO - CMAJ SP - 441 LP - 443 VL - 151 IS - 4 AU - G. Krueger Y1 - 1994/08/15 UR - http://www.cmaj.ca/content/151/4/441.abstract ER -