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APA Citation
Principi, N., Terranova, L., Zampiero, A., Montinaro, V., Ierardi, V., Peves Rios, W., Pelucchi, C., & Esposito, S. (2015). pharyngeal Colonization by Streptococcus pneumoniae in Older Children and Adolescents in a Geographical Area Characterized by Relatively Limited Pneumococcal Vaccination Coverage. Pediatric infectious disease journal, 34(4), . http://access.bl.uk/ark:/81055/vdc_100026010667.0x000031