Corynebacterium diphtheriae Ab^2nd specimen/1st specimen:Ratio:Pt:Ser:Qn
corynebacterium diphtheriae ab^2nd specimen/1st specimen:ratio:pt:ser:qn
Corynebacterium diphtheriae Antibody^2nd specimen/1st specimen:Ratio:To identify measures at a point in time:Serum:Quantitative
corynebacterium diphtheriae antibody^2nd specimen/1st specimen:ratio:to identify measures at a point in time:serum:quantitative