title: We have a problem: why have ALS trials been negative?
authors.forename: Michael
authors.initials: M
authors.lastname: Swash
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000628:therapy*; D002986:Clinical Trials as Topic / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D017063:Outcome Assessment, Health Care