Heather E. Hsu, Kathleen A. Shutt, Matthew R. Moore, Bernard W. Beall, Nancy M. Bennett, Allen S. Craig, Monica M. Farley, James H. Jorgensen, Catherine A. Lexau, Susan Petit, Arthur Reingold, William Schaffner, Ann Thomas, Cynthia G. Whitney, Lee H. Harrison,
Effect of Pneumococcal Conjugate Vaccine on Pneumococcal Meningitis The New England Journal of Medicine. ,vol. 360, pp. 244- 256 ,(2009) ,
10.1056/NEJMOA0800836