Arcay, Jose D Radiology quality assurance in a developing country setting: the 11-valent pneumococcal conjugate vaccine trial, Bohol, Philippines. [electronic resource] - Vaccine Mar 2007 - 2528-32 p. digital Publication Type: Clinical Trial, Phase III; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't ISSN: 0264-410X Standard No.: 10.1016/j.vaccine.2006.09.030 doi Subjects--Topical Terms: ChildDeveloping CountriesHumansPhilippinesPneumococcal Vaccines--therapeutic usePneumonia, Pneumococcal--diagnostic imagingQuality Assurance, Health Care--methodsRadiographyRadiology--methods