Clinical course and flare predictors in patients with rheumatoid arthritis in low disease activity and ultrasound remission monitored by ultrasound yearly and on-demand: A prospective 2-year observation study Takeo Abe; Masao Tamura; Kazuyuki Tsuboi; Yuko Minagawa; Kazuteru Noguchi; Chie Ogita; Teppei Hashimoto; Naoto Azuma; Kiyoshi Matsui;

The association between smoking and the development of rheumatoid arthritis: a population-based case-control study Júlia Sánchez-Campamà; Navraj S. Nagra; Marta Pineda-Moncusí; Albert Prats-Uribe; Daniel Prieto-Alhambra;

Can we predict the risk factors for switching due to ineffectiveness in the first year of therapy with bDMARD in patients with rheumatoid arthritis? Ana Martins; Sofia Pimenta; Daniela Oliveira; Rafaela Nicolau; Alexandra Bernardo; Teresa Martins Rocha; Lúcia Costa; Miguel Bernardes;