Clean room operating rooms.
D000391:Air Microbiology; D000392:Air Movements; D001424:Bacterial Infections / Q000517:prevention & control; D003120:Colorado; D005374:Filtration; D006801:Humans; D008029:Lighting; D008397:Masks; D008837:Micrococcus; D009873:Operating Rooms; D011481:Protective Clothing; D011482:Protective Devices; D013203:Staphylococcal Infections / Q000517:prevention & control; D013530:Surgical Wound Infection / Q000517:prevention & control*