Borrow R, Joseh H, Andrews N; et al. Reduced antibody response to revaccination with meningococcal serogroup A polysaccharide vaccine in adults. Vaccine. 2000, 19 (9–10): 1129–32. PMID 11137248. 引文格式1维护:显式使用等标签 (link)
MacLennan J, Obaro S, Deeks J; et al. Immune response to revaccination with meningococcal A and C polysaccharides in Gambian children following repeated immunization during early childhood. Vaccine. 1999, 17 (23–24): 3086–93. PMID 10462244. 引文格式1维护:显式使用等标签 (link)
Moore PS, Harrison LH, Telzak EE, Ajello GW, Broome CV. Group A meningococcal carriage in travelers returning from Saudi Arabia. J Am Med Assoc. 1988, 260: 2686–89. PMID 3184335.