在这个研究中，340名孕妇在孕期第三个三个月中被随机的分配接受灭活流感疫苗或者23-价肺炎球菌多糖疫苗注射(对照)。
In this study, 340 pregnant women in the third trimester were randomly assigned to receive inactivated influenza vaccine or the 23-valent pneumococcal polysaccharide vaccine (control).
在这个研究中，340名孕妇在孕期第三个三个月中被随机的分配接受灭活流感疫苗或者23-价肺炎球菌多糖疫苗注射(对照)。
In this study, 340 pregnant women in the third trimester were randomly assigned to receive inactivated influenza vaccine or the 23-valent pneumococcal polysaccharide vaccine (control).
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