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Cortès I, Artazcoz L, Rodríguez-Sanz M, Borrell C.Cortès I, et al. Among authors: artazcoz l.Gac Sanit. 2004 Sep-Oct;18(5):351-9. doi: 10.1016/s0213-9111(04)71844-0.Gac Sanit. 2004.PMID: 15498404Free article.Spanish.