RT Journal Article SR Electronic T1 Homozygosity for Asn86Ser mutation in the CuZn-superoxide dismutase gene produces a severe clinical phenotype in a juvenile onset case of familial amyotrophic lateral sclerosis. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 174 OP 174 DO 10.1136/jmg.35.2.174 VO 35 IS 2 A1 C Hayward A1 D J Brock A1 R A Minns A1 R J Swingler YR 1998 UL http://jmg.bmj.com/content/35/2/174.1.abstract AB