URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15517587&query_hl=1&itool=pubmed_DocSum Authors: Morreale, / Cruz, Xavier / Meyer, Tim / Gelpí, Josep Lluís / Luque, Francisco Javier / Orozco, Modesto