Corynebacterium diphtheriae toxin Ab^1st specimen:ACnc:Pt:Ser:Qn
corynebacterium diphtheriae toxin ab^1st specimen:acnc:pt:ser:qn
Corynebacterium diphtheriae toxin Ab^1st specimen:ACnc:Pt:Ser:Qn
corynebacterium diphtheriae toxin ab^1st specimen:acnc:pt:ser:qn