MicrobiologyOpen MicrobiologyOpen Characterization of methicillin-resistant Staphylococcus aureus strains colonizing the nostrils of Spanish children Román F. Mendez-Echevarria A. Del Rosal T. Garcia-Vera C. Universidad de Zaragoza Escosa-Garcia L. Agud M. Chaves F. Gutiérrez-Fernández J. Ruiz de Gopegui E. Ruiz-Carrascoso G. Ruiz-Gallego M. C. Fernández-Verdugo A. M. Sainz T. Calvo C. 2021 research-article