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]
The Influence of Various Air Exchange Rates on Airborne Particles and Microorganisms in Conventionally Ventilated Operating Rooms
Determinants of Legionella pneumophila contamination of water distribution systems: 15-hospital prospective study
Colonization of transplant unit water supplies with Legionella and protozoa: precautions required to reduce the risk of legionellosis