title: Foreword: motor neuron disease continues to be both a puzzle and a challenge to the medical community.
authors.affiliation: University of Washington, Box 356490, 1959 NE Pacific St., Seattle, WA 98195-6490, USA. ghkraft@u.washington.edu
authors.forename: George H
authors.initials: GH
authors.lastname: Kraft
mesh_terms: D035843:Biomedical Research / Q000379:methods*; D003937:Diagnosis, Differential; D004185:Disability Evaluation; D006801:Humans; D016472:Motor Neuron Disease / Q000175:diagnosis / Q000209:etiology / Q000534:rehabilitation