title: Laminar flow vs conventional ventilation in operating rooms: results of a 3-yr study of airborne bacteria in a large hospital.
mesh_terms: D000391:Air Microbiology; D000392:Air Movements; D003428:Cross Infection / Q000517:prevention & control*; D006801:Humans; D009873:Operating Rooms / Q000592:standards*; D013530:Surgical Wound Infection / Q000517:prevention & control*; D014481:United States; D014691:Ventilation