How do PCBs cause cancer?

Related questions

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6. What is PCB software?
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Tags

1. #years
2. #cancer
3. #kinds
4. #liver
5. #biliary
6. #tract
7. #workers
8. #indicate
9. #biphenyls
10. #containing
11. #studies
12. #levels
13. #associated
14. #polychlorinated
15. #likely
16. #cause
17. #certain
18. #humans
19. #developed