How does black lung disease affect the body?

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  1. #black
  2. #portions
  3. #scarring
  4. #cases
  5. #vessels
  6. #airways
  7. #years
  8. #months
  9. #called
  10. #lungs
  11. #several
  12. #inhaled
  13. #bronchioles
  14. #which
  15. #deposits
  16. #disease
  17. #affect
  18. #blood
  19. #collect
  20. #destroy
  21. #around