title: A study of the effectiveness of a surgical unidirectional filtered air flow unit during total prosthetic replacements of the hip.
mesh_terms: D000389:Air Conditioning; D000391:Air Microbiology; D004864:Equipment and Supplies; D005374:Filtration; D006615:Hip / Q000601:surgery*; D006801:Humans; D007595:Joint Prosthesis; D009519:New York City; D009873:Operating Rooms; D011446:Prospective Studies; D013530:Surgical Wound Infection / Q000382:microbiology / Q000517:prevention & control*