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Aguiar SI, Serrano I, Pinto FR, Melo-Cristino J, Ramirez M; Portuguese Surveillance Group for the Study of Respiratory Pathogens.Aguiar SI, et al. Among authors: pinto fr.Clin Microbiol Infect. 2008 Sep;14(9):835-43. doi: 10.1111/j.1469-0691.2008.02031.x.Clin Microbiol Infect. 2008.PMID: 18844684Free article.