Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) VU HT,"Association Between Nasopharyngeal Load of Streptococcus pneumoniae, Viral Coinfection, and Radiologically Confirmed Pneumonia in Vietnamese Children",Pediatr Infect Dis J,,,2010,,,,https://cir.nii.ac.jp/crid/1570291226277870592,