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MeSH terms
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Bacteria / isolation & purification*
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Haemophilus influenzae / isolation & purification
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Humans
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Klebsiella / isolation & purification
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Respiratory Tract Infections / diagnosis*
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Sputum*
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Staphylococcus / isolation & purification
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Streptococcus / isolation & purification
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Streptococcus pneumoniae / isolation & purification