References
- . Bennett, J. V. & Young, L. S.: Trends in meningococcal disease. J Infect Dis 120: 634, 1969.
- . Branham, S. E.: Serological relationships among meningococci. Bacteriol Rev 17: 175, 1953.
- . Lapeysonnie, L.: La meningite cerebrospinale en Afrique. Bull WHO 28: 114, Suppl., 1963.