title: ALS issues in clinical trials. Statistical issues.
authors.affiliation: Columbia, NY, USA.
authors.forename: Bruce
authors.initials: B
authors.lastname: Levin
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000188:drug therapy*; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data*; D003627:Data Interpretation, Statistical; D015507:Drugs, Investigational; D006801:Humans; D012107:Research Design; D018401:Sample Size
chemical_list: D015507:Drugs, Investigational