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  1. NIOSH Pocket Guide to Chemical Hazards - Centers for Disease …

  2. Chemical Hazards Risk Factors | Healthcare Workers | CDC

  3. Chemical Hazards - Centers for Disease Control and Prevention

  4. Chemical safety - World Health Organization (WHO)

  5. Pocket Guide to Chemical Hazards Introduction | NIOSH | CDC

  6. Chemical safety - World Health Organization (WHO)

  7. CCOHS: Chemicals - Canadian Centre for Occupational Health and …

  8. Guidance on chemicals and health - World Health Organization …

  9. WHO Human Health Risk Assessment Toolkit: Chemical Hazards, …