1. Meningococcal vaccines. Current status and future possibilities;Peltola;Drugs,1998
2. Evaluation of two tetravalent (ACYW135) meningococcal vaccines in infants and small children: a clinical study comparing immunogenicity of O-acetyl-negative and O-acetyl-positive group C polysaccharides;Peltola;Pediatrics,1985
3. Guide for adult immunization,1985
4. Incidence of reactions to meningococcal A&C vaccine among U.K. schoolchildren;Roberts;Public Health,1988
5. Immunogenicity of 2 serogroup B outer-membrane protein meningococcal vaccines: a randomized controlled trial in Chile;Tappero;JAMA,1999