Streptococcus pneumoniae 4 Ab.IgG^2nd specimen/1st specimen
streptococcus pneumoniae 4 ab.igg^2nd specimen/1st specimen
Streptococcus pneumoniae 4 Ab.IgG^2nd specimen/1st specimen
streptococcus pneumoniae 4 ab.igg^2nd specimen/1st specimen