Correspondence on: 'EULAR definition of difficult-to-treat rheumatoid arthritis'.
Marta Novella NavarroChamaida Plasencia-RodríguezCarolina TorneroVictoria Navarro-CompánJosé Luis Cabrera-AlarcónDiana PeiteadoLaura NuñoIrene Monjo HenryKaren Franco-GómezAlejandro VillalbaAlejandro BalsaPublished in: Annals of the rheumatic diseases (2020)