Ultraclean air and antibiotics for prevention of postoperative Infection. A multicenter study of 8,052 joint replacement operations
The impact of surgical-site infections in the 1990s: attributable mortality, excess length of hospitalization, and extra costs
Assessment of prolonged hospital stay attributable to surgical site infections using appropriateness evaluation protocol
[Cost evaluation of a ventilation system for operating theatre: an ultraclean design versus a conventional one]