title: Inadequate outcome measures are the biggest impediment to successful clinical trials in progressive MS - Commentary.
authors.affiliation: Mellen Center for Multiple Sclerosis Treatment and Research, Department of Neurology, Neurological Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Ontaneda
mesh_terms: D006801:Humans; D020528:Multiple Sclerosis, Chronic Progressive; D017063:Outcome Assessment, Health Care