1. Quality control limits for microdilution susceptibility tests with norfloxacin;Barry;J Clin Microbiol,1987
2. Minimal inhibitory concentrations of broad spectrum β-lactam antibiotics for bacterial control strains;Fass;Diagn Microbiol Infect Dis,1983
3. Quality control limits for ampicillin, carbenicillin, mezlocillin, and piperacillin disk diffusion susceptibility tests: A collaborative study;Gavan;J Clin Microbiol,1981
4. Approved Standard, M7-A;National Committee for Clinical Laboratory Standards,1985
5. Proposed Standard M23-P;National Commitee for Clinical Laboratory Standards,1987