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;

Integrating different perspectives to define a concept of comprehensive remission in rheumatoid arthritis: The SUMAR project Alejandro Balsa; José Luis Andreu; Juan Carlos Hermosa-Hernán; Josefa León-Navarro; Jordi Nicolas Pico; José Javier Pérez Venegas; Susana Romero-Yuste; Raimon Sanmarti; Antonio Ignacio Torralba Gómez-Portillo; Juan Carlos Valenzuela-Gámez; Jordi Cohen;