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Patrícia Salgueiro, José L Vicente, Conceição Ferreira, Vânia Teófilo, André Galvão, Virgílio E do Rosário, Pedro Cravo and João Pinto*
* Corresponding author: João Pinto jpinto@ihmt.unl.pt
BMC Infectious Diseases 2010, 10:163 doi:10.1186/1471-2334-10-163