No abstract available
MeSH terms
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Humans
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Male
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Meningitis, Meningococcal / diagnosis
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Meningitis, Meningococcal / mortality
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Meningitis, Meningococcal / prevention & control*
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Middle Aged
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Neisseria meningitidis / classification*
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Neisseria meningitidis / isolation & purification
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Saudi Arabia
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Vaccination*