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;

Expert recommendations on the interleukin 6 blockade in patients with rheumatoid arthritis Jesús Tornero Molina; Alejandro Balsa Criado; Francisco Blanco García; Ricardo Blanco Alonso; Sagrario Bustabad; Jaime Calvo Alen; Héctor Corominas; Antonio Fernández Nebro; Jose Andrés Román Ivorra; Raimon Sanmartí;

Pseudoseptic arthritis as a complication of intra-articular infiltration of hyaluronic acid in a patient with rheumatoid arthritis Chafik Chacur; Anastasia Mocritcaia; Raimon Sanmartí;