Development and feasibility of 4 checklists for the evaluation of comorbidity in patients with rheumatoid arthritis, axial spondyloarthritis and psoriatic arthritis: GECOAI Project Santos Castañeda; Carlos González; Virginia Villaverde; Cristina Lajas Petisco; María Carmen Castro; Fernando Jirout; Juan Carlos Obaya; Juan Carlos Hermosa; Carmen Suárez; Silvia García; María Rodero; Leticia León; Amparo López Esteban; Milena Gobbo; Laly Alcaide; Juan Carlos Torre-Alonso;

Practical aspects of biological throught levels and antidrug antibodies in rheumatoid arthritis and spondyloarthritis José Rosas; María Martín-López; Teresa Otón; Alejandro Balsa; Jaime Calvo-Alén; Raimon Sanmartí; Jesús Tornero; Loreto Carmona;

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;