How is emphysema caused?

Tags

1. #other
2. #emphysema
3. #behavior
4. #cigarette
5. #preventable
6. #called
7. #dangerous
8. #pollution
9. #alpha
10. #heredity
11. #deficiency
12. #develop
13. #cause
14. #antitrypsin
15. #causes
16. #people
17. #smoking
18. #reactivity
19. #airway
20. #factors
21. #include
22. #enzyme