What causes psoriasis arthritis?

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Tags

1. #autoimmune
2. #healthy
3. #swelling
4. #causes
5. #occurs
6. #system
7. #tissue
8. #disease
9. #joints
10. #faulty
11. #attacks
12. #mistakenly
13. #psoriasis
14. #response
15. #joint
16. #immune
17. #inflammation
18. #triggers
19. #stiffness
20. #meaning