1997-2007年上呼吸道感染患儿鼻咽部6群肺炎链球菌分离株的耐药性变化
1997-2007년상호흡도감염환인비인부6군폐염련구균분리주적내약성변화
Changing antibiotic resistance pattern of serogroup 6 Streptococcus pneumoniae isolated from children with upper respiratory infection during the period from 1997 to 2007
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