Исследования вакцины против пневмококковой инфекции: S. Black, H. Shinefield, B. Fireman, et al., Efficacy, Safety, and Immunogenicity of Heptavalent Pneumococcal Conjugate Vaccine in Children: Northern California Kaiser Permanente Study Center Group, Pediatric Infectious Disease Journal 19 (2000): 183–186.
