Corynebacterium diphtheriae Ab^2nd specimen/1st specimen:Ratio:Pt:Ser:Qn
corynebacterium diphtheriae ab^2nd specimen/1st specimen:ratio:pt:ser:qn
Corynebacterium diphtheriae Ab^2nd specimen/1st specimen:Ratio:Pt:Ser:Qn
corynebacterium diphtheriae ab^2nd specimen/1st specimen:ratio:pt:ser:qn