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Polysaccharide vaccines for preventing serogroup A meningococcal meningitis (Cochrane Review) ABSTRACT Background: Randomised trials carried out over two decades ago showed that the polysaccharide vaccine prevented serogroup A meningococcal meningitis. Subsequent non-randomised studies, however, suggested significant variations in the age-specific duration of pro . . . |
Full article: The full article is available on Wiley InterScience at http://www.thecochranelibrary.com |