4Harada, Y,Matsubara, S,Kakimoto, M. et al.Ceftezole, a new cephalosporin C derivative Ⅱ:distribution and excretion in parenteral administration[].Journal of Antibiotics.1976
5National committee for clinical laboratory standards (NCCLS).Methods for dilution antimicrobial susceptibility tests for bacteria that grow aerobically[].standard M-A.1997
6Noto,T Nehashi,H. Endo, M. et al.Ceftezole, a new cephalosporin C derivative, I : in vitro and in vivo antimicrobial activity[].Journal of Antibiotics.1976