title: The exogenous sources and controls of microorganisms in the operating room.
authors.forename: M A
authors.initials: MA
authors.lastname: Ritter
authors.forename: P
authors.initials: P
authors.lastname: Marmion
mesh_terms: D000391:Air Microbiology; D000985:Antisepsis / Q000379:methods*; D001207:Asepsis / Q000379:methods*; D006801:Humans; D009873:Operating Rooms / Q000592:standards*; D013242:Sterilization / Q000592:standards; D013523:Surgical Equipment / Q000592:standards; D013530:Surgical Wound Infection / Q000517:prevention & control*