Katsarolis, Ioannis Poulakou, Garyphallia Analitis, Antonios and Matthaiopoulou, Irini Roilides, Emmanuel Antachopoulos, Charalampos Kafetzis, Dimitrios A. Daikos, Georgios L. and Vorou, Regina Koubaniou, Christina Pneumatikos, Ioannis and Samonis, Georgios Syriopoulou, Vasiliki Giamarellou, Helen and Kanellakopoulou, Kyriaki, Risk factors for nasopharyngeal carriage of drug-resistant Streptococcus
pneumoniae: data from a nation-wide surveillance study in Greece, BMC Infectious Diseases, (9), 2009, BMC, 1471-2334