Substance abuse in the workplace.
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D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology* / Q000401:mortality / Q000451:nursing; D009785:Occupational Health Nursing / Q000379:methods*; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000401:mortality / Q000451:nursing; D014481:United States / Q000453:epidemiology