Protection against anti-citrullinated protein antibody-positive rheumatoid arthritis is predominantly associated with HLA-DRB1*1301: A meta-analysis of HLA-DRB1 associations with anti-citrullinated protein antibody-positive and anti-citrullinated protein antibody-negative rheumatoid arthritis in four european populations

1. Van Der Woude, D.
2. Lie, B.A.
3. Lundström, E.
4. Balsa, A.
5. Feitsma, A.L.
6. Houwing-Duistermaat, J.J.
7. Verduijn, W.
8. Nordang, G.B.N.
9. Alfredsson, L.
10. Klareskog, L.
11. Pascual-Salcedo, D.
12. Gonzalez-Gay, M.A.
13. Lopez-Nevot, M.A.
14. Valero, F.
15. Roep, B.O.
16. Huizinga, T.W.J.
17. Kvien, T.K.
18. Martín, J.
19. Padyukov, L.
20. De Vries, R.R.P.
21. Toes, R.E.M.