URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15879453&query_hl=1&itool=pubmed_DocSum Authors: Ferrer-Costa, Carles / Gelpí, Josep Lluís / Zamakola, / Parrága, / Cruz, Xavier / Orozco, Modesto