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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;