10137
Natural Haemophilus influenzae type b capsular polysaccharide antibodies in 412 infants and children from West Africa ( Burkina - Faso ) and France : a cross - sectional serosurvey .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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