the in-vitro activity of cefotetan , a new cephamycin , was assessed against a total of 336 strains of anaerobic bacteria by means of an agar dilution procedure and compared with that of cefoxitin , mezlocillin , piperacillin , clindamycin and metronidazole .
C0007555
cefotetan
C0007736
cephamycin