Comorbidities in Mexican Mestizo patients with rheumatoid arthritis: A cross-sectional study of 523 patients in a preventive cardio-rheumatology clinic Rosa I. Arvizu-Rivera, Jesus A. Cardenas-de la Garza, Valeria Gonzalez-Gonzalez, Dionicio A. Galarza-Delgado, Jose R. Azpiri-Lopez, Andrea L. Guajardo-Aldaco, Maria F. Elizondo-Benitez, Iris J. Colunga-Pedraza

Gastrointestinal symptoms in patients using methotrexate: A cross-sectional study in a sample with rheumatoid arthritis Carina Albuquerque Roberto, Isabela Stachevski, Barbara Stadler Kahlow, Renato Nisihara, Thelma Skare

Prevalence and impact of chronic joint diseases on the sexual sphere compared to a healthy population: A multicenter cross-sectional study Carlos Valera-Ribera, Juan José Alegre-Sancho, Àngels Martínez-Ferrer, Montserrat Robustillo-Villarino