Comment on

• The timing of prophylactic administration of antibiotics and the risk of surgical-wound infection.

  Classen DC, Evans RS, Pestotnik SL, Horn SD, Menlove RL, Burke JP. Classen DC, et al. N Engl J Med. 1992 Jan 30;326(5):281-6. doi: 10.1056/NEJM199201303260501. N Engl J Med. 1992. PMID: 1728731 Clinical Trial.