URL: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=15977281&query_hl=2&itool=pubmed_DocSum Authors: Pérez, Alberto / Sponer, Jim / Jurecka, / Hobza, / Luque, Francisco Javier / Orozco, Modesto