we have compared the antibacterial activities of cephalexin and cephradine against staphylococcus aureus , staphylococcus epidermidis , staphylococcus saprophyticus ( micrococcus spp . type iii ) , and group b streptococci ( 35 strains in total ) , using the biophotometer .
C0007716
cephalexin
C0007738
cephradine