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作者比较了75名18～23月龄健康儿童接种一次不同的b型流感杆菌(Hib)荚膜多糖(CPS)菌苗后的血清Hib-CPS抗体的水平。
The authors compared the levels of serum Hib-CPS antibodies to 75 healthy children aged 18 to 23 months after vaccination with a different Hib capsular polysaccharide (CPS) vaccine.