Streptococcus pneumoniae Danish serotype 9N Ab^1st specimen/2nd specimen:Ratio:Pt:Ser:Qn
streptococcus pneumoniae danish serotype 9n ab^1st specimen/2nd specimen:ratio:pt:ser:qn
Streptococcus pneumoniae Danish serotype 9N Ab [Ratio] in Serum --1st specimen/2nd specimen
streptococcus pneumoniae danish serotype 9n ab [ratio] in serum --1st specimen/2nd specimen