Is black lung disease cancer?

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  1. #lungs
  2. #workers
  3. #because
  4. #called
  5. #color
  6. #dusts
  7. #sometimes
  8. #silicosis
  9. #disease
  10. #cause
  11. #diseases
  12. #below
  13. #which
  14. #pneumoconiosis
  15. #these
  16. #black
  17. #includes
  18. #charcoal
  19. #asbestosis