Room air disinfection by ultraviolet irradiation of upper air: air mixing and germicidal effectiveness.
Ultraviolet lamps for room air disinfection: effect of sampling location and particle size of bacterial aerosol.
Outbreak of invasive Aspergillus infection in surgical patients, associated with a contaminated air-handling system.
Infection rates after 3175 total hip and total knee replacements performed with and without a horizontal unidirectional filtered airflow system