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Camacho A, Pérez-Camacho I, Rivero A, Natera C, García-Lázaro M, Castón JJ, Gallo M, Kindelán JM, Torre-Cisneros J.Camacho A, et al.Enferm Infecc Microbiol Clin. 2010 Apr;28(4):239-44. doi: 10.1016/j.eimc.2009.04.003. Epub 2009 Aug 3.Enferm Infecc Microbiol Clin. 2010.PMID: 19647900Spanish.