title: Elevation of serum creatine phosphokinase in amyotrophic lateral sclerosis.
mesh_terms: D000328:Adult; D000690:Amyotrophic Lateral Sclerosis / Q000201:enzymology*; D003402:Creatine Kinase / Q000097:blood*; D004576:Electromyography; D006801:Humans; D008875:Middle Aged; D013053:Spectrophotometry
chemical_list: D003402:Creatine Kinase