title: Inadequate outcome measures are the biggest impediment to successful clinical trials in progressive MS - YES.
authors.affiliation: Queen Square Multiple Sclerosis Centre, Department of Neuroinflammation, UCL Institute of Neurology, University College London, London, UK.
authors.forename: Jeremy
authors.initials: J
authors.lastname: Chataway
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D020528:Multiple Sclerosis, Chronic Progressive / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D016896:Treatment Outcome