Streptococcus pneumoniae Ab.IgG^1st specimen/2nd specimen:Ratio:Pt:Ser:Qn
streptococcus pneumoniae ab.igg^1st specimen/2nd specimen:ratio:pt:ser:qn
Streptococcus pneumoniae Ab.IgG^1st specimen/2nd specimen:Ratio:Pt:Ser:Qn
streptococcus pneumoniae ab.igg^1st specimen/2nd specimen:ratio:pt:ser:qn