Amyotrophic lateral sclerosis and sports: a case–control study
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Tài liệu tham khảo
Breslow NE, 1980, Statistical Methods in Cancer Research. Volume 1: The Analysis of Case–Control Studies
Kurtzke JF, 1982, Epidemiology of amyotrophic lateral sclerosis, Adv Neurol, 136, 281
Schlesselman JJ, 1982, Case–Control Studies: Design, Conduct, Analysis