Not the same, but is it the same? Cycling of biologic agents in rheumatoid arthritis. Experience in the Instituto Mexicano del Seguro Social Francisco Javier Aceves-Ávila; José Ramiro Hernández Vásquez; Sandra Sicsick; María de Lourdes Olguín Ortega; María Azucena Ramos Sánchez; Adelfia Urenda Quezada; Lizbet Tinajero Nieto; Freddy Jose Faccin; Miguel Angel Ramírez Ramírez; Natali Serra-Bonett; Angel Mario Coll Muñoz;

Survival of first line biological and targeted synthetic disease-modifying anti-rheumatic drugs in patients with rheumatoid arthritis in Chile Marcos Cruces Olivar; Allan D. Burboa; Yolanda M. Gómez;

Survey to evaluate exposure to environmental factors in patients with rheumatoid arthritis Alexandra Zúñiga; Alba Luz León Álvarez; Luisa Carbal-Reyes; Daniel Rodríguez; Juan-Camilo Díaz; Gloria Vásquez; Diana Castaño;