Corynebacterium diphtheriae toxin Ab^2nd specimen:ACnc:Pt:Ser:Qn:IA
corynebacterium diphtheriae toxin ab^2nd specimen:acnc:pt:ser:qn:ia
Corynebacterium diphtheriae toxin Ab^2nd specimen:ACnc:Pt:Ser:Qn:IA
corynebacterium diphtheriae toxin ab^2nd specimen:acnc:pt:ser:qn:ia