R Klepadlo

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OBJECTIVES To evaluate the safety and immunogenicity of Biken acellular pertussis vaccine in combination with diphtheria and tetanus toxoid (Biken DTaP) vaccine administered to children 4 to 6 years of age who had previously received four doses of Biken DTaP. METHODS 580 children were enrolled to receive one dose of Biken DTaP. Local and systemic(More)
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