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Oteo J, Cruchaga S, Campos J, Sáez-Nieto JA, Baquero F; Miembros españoles del Grupo del European Antimicrobial Surveillance System (EARSS).Oteo J, et al.Enferm Infecc Microbiol Clin. 2003 Jan;21(1):12-9. doi: 10.1016/s0213-005x(03)72868-7.Enferm Infecc Microbiol Clin. 2003.PMID: 12550039Spanish.