title: The accuracy of mortality statistics in clinically proven amyotrophic lateral sclerosis.
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000175:diagnosis / Q000401:mortality*; D003644:Death Certificates / Q000592:standards; D003937:Diagnosis, Differential; D006801:Humans; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis; D009657:North Carolina; D013223:Statistics as Topic / Q000592:standards*