(Q43327278)
Statements
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Outbreak of paralytic poliomyelitis in Namibia (English)
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A B van Niekerk
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J B Vries
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J Baard
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B D Schoub
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C Chezzi
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N K Blackburn
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1 September 1994
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344
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8923
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661-664
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Identifiers
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