Critical outcomes in longitudinal observational studies and registries in patients with rheumatoid arthritis: An OMERACT special interest group report

1. Zamora, N.V.
2. Christensen, R.
3. Goel, N.
4. Klokker, L.
5. Lopez-Olivo, M.A.
6. Kristensen, L.E.
7. Carmona, L.
8. Strand, V.
9. Curtis, J.R.
10. Suarez-Almazor, M.E.