Clostridium tetani toxoid Ab^2nd specimen/1st specimen:Ratio:Pt:Ser:Qn
clostridium tetani toxoid ab^2nd specimen/1st specimen:ratio:pt:ser:qn
Clostridium tetani toxoid Ab^2nd specimen/1st specimen:Ratio:Pt:Ser:Qn
clostridium tetani toxoid ab^2nd specimen/1st specimen:ratio:pt:ser:qn