Cohen, S. P., McMurry, L. M., Hooper, D. C., Wolfson, J. S., & Levy, S. B. (1989). Cross-resistance to fluoroquinolones in multiple-antibiotic-resistant (Mar) Escherichia coli selected by tetracycline or chloramphenicol: Decreased drug accumulation associated with membrane changes in addition to OmpF reduction.

Cohen, S P., L M. McMurry, D C. Hooper, J S. Wolfson, ja S B. Levy. Cross-resistance to Fluoroquinolones in Multiple-antibiotic-resistant (Mar) Escherichia Coli Selected By Tetracycline or Chloramphenicol: Decreased Drug Accumulation Associated With Membrane Changes in Addition to OmpF Reduction. 1989.

Cohen, S P., et al. Cross-resistance to Fluoroquinolones in Multiple-antibiotic-resistant (Mar) Escherichia Coli Selected By Tetracycline or Chloramphenicol: Decreased Drug Accumulation Associated With Membrane Changes in Addition to OmpF Reduction. 1989.