title: Mortality rate of amyotrophic lateral sclerosis in Japan: effects of marital status and social class, and geographical variation.
mesh_terms: D000367:Age Factors; D000690:Amyotrophic Lateral Sclerosis / Q000401:mortality*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008393:Marriage; D009790:Occupations; D012423:Rural Health; D012621:Seasons; D012737:Sex Factors; D014504:Urban Health